1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9670eb3d2d9a990e110c652aaaa237fb120420ce3edf892df9c70903cc909ba. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4bbdf774-ca0d-47a8-8ee6-6414c302ccfd.json and https://artists.proofprofile.net/proofs/artist/4bbdf774-ca0d-47a8-8ee6-6414c302ccfd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a62562c48d67aaa1c630e6e9c19333bfb7182a725af44bc035f6ba6977b9be. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU7976053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c7233f764faf09d12c67d451dd993ddfef2f1d89eb1ed33ec1e34c4905c41e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU7976054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ba1aaeb1f973c31819cdc6f5ea8fcb3501f41971a9a888c5b5e7327260e013. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU7976056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81a7a932c73f8b02d83d16c74313b205d6564acfb21d8c0da7ad4a003e20698d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU7976057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x129ff3b0fa058b4ba23eae83531e1c966fd5766ceaeaad6a5544ac1c31e2c3ac. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU7976058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd70a1b134d9235b391b1bd5c95a275cb08a691ca8f61d1d9537e0d7ef3575c6e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU7976060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x901d43d2775e07b1d8a5b797cf55bb13391968244074926192dbc76af877de58. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU7976062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0576183aa08f00ce36155da080cb63e66c0508af603674154e165d6d6f1a952e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU7976064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cf4d419f6729c7210c00aed720061efbf03e14440a1faee2e42ffc608f9d4cb. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU7976067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x499cc3f0205f1bb634de97bd360c284eb2e19b54883843ce941ec616bf768c19. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU7976096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee29cf34265299465f4a167a4a0938ddfd26b1ebb697eff86a4af5da4509c103. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU7976097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd381db18eb059799f30b75092218bd5f12f576062d8ce1f9ff38d569481a3ae6. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU7976098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b5efb2d9d01cbce88d289becbcb521f5b7b69276f6c0f2e2baa3a65a2673e95. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU7976099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x451ba0ce189a103d36e3b335edb66eae4f057e24fb570917a7ea3759a78d3515. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU7976101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ce4a0dd15372aa0d4ce071ff4487abdc94eea8074e8a89f091703f8af10dafd. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU7976103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbafe36a77aa5fa90d1158cc83ea53b01922512b91d7dabf66709b6b6789bb2c1. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU7976104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8474dd6932f7026ecf8efdb25bbf2392e75d83292bd2539c83dd042fdcc80d89. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU7976106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3b9e0248c4f9ca5026d27de8f93c79f27fc20f679e7e083d9212236c391d118. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU7976144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeea42a647f8b8078ecb3b284a45a761dd8da17b064745efd959a855813b9bfa. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU7976148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f043b87c9a400e5c3e1e0fcd4bda5cf481779cc32753f40878d7d35b2de1ce9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU7976152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa87fab13c7872c12b77b21fde379983a3827994a4070006888b27d1124c50460. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU7976153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5fa38d6703e9edb138b4b7b4c93041390c36c5db13ad0b38a04df6f689e8957. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU7976156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13890b8c8c028cfff163e07e9a2548662d823399883b51d44767160ccbb61661. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU7976231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa468bb5c81d282914bfccff921fb1cfd1b40dd1f7c08da6fc9bf1175363eafcf. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX5MY2413283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fe560d8c56f84220a641652c89a858ef052a68ffd5a90690a9b9eba60c274d2. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU4877032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a2a83242256e5f2ac6950a2f8cb494381de29da07592c17b677da9f07d94101. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU4877089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bfebf363d9ddb0ad906db32bfdcfb4c311e50db1a9898f1a985185697273a4f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU4877149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09abfca5ed54bfcc20d7dd195c69f6d5ca1400f1b715fd8c979ffb5b8c3f0736. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU4877150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x492e0ab997fa0147f69e27c852dc0311d062df62dc4992ba51e6fe1982cbb544. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU4877232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xded74f6227cc238cc28761990b05e391721fbba8df6e33ab7c9d0226194073a0. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU4877321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c41cf30c5aef3d538eca97d69b6bc84efa970120fae0da497d4b893e7cc2d19. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU4877363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf636284557580e37d32677aedeb2703633fda44c756a33fbd78236dd6e9168bf. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU4877365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d265662527a61e985a90e68cc417af4efa1d84587f23c2974ba036ac9eee17a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU4877432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfabb59f50280c9b07fe8bb92cb6a1c762f55e169bb3377258b4b39691334ea92. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU8869679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x323602c7c909abe014b6fd9bc14214d7b7fbd6967e2fcf945d0910ca89107a06. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU8869680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x994ff0c504819b8c5b5024cc949a80e0639877adb75d237e61ac3c3dacc13594. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU8869681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x775aff42b888ac7120ab6f252fff9e2b8bee8ef26a75ca61281fa157a3e3d8b1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU8869682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2319e75125ddbb42a6b75354d6f509ad195cd97a6efae74e1b60345df09bdc58. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU8869684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf58c6c51987462263331434bb515a88b9b6c64a37436692acec68c20dbd9e301. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU8869688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22a634525e92d16b17f8145e437001ab90f496126887dafadf9da525e9f6c2cb. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU8869690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc39556c08ec388c9a22130818c34d6b66deab8854c26f994908df5dabf58220a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU8869720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ca48b821dc2a771a41750b5efcf18680066b68c0403fed7b0e2d153ea95b790. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU8869721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x775ef247680d269a982b801e23fc64773744e2de5a4c7994a4b1186a97dc8ea2. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU8869723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74afa0dd7adb65d40845be54b28c2ea7a2d7936255f279479ebc6d8d7d358fad. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU8869726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0024a77ce4e86bca93313547e5c8060ecbf978bd1179dee352ed2ded4a44189. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU8869730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c3327166e3bf598306233525b38b0b4526b75604ae98ce7944556ba3a4a150f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU8869758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31465413beec4e6df41ac92dec810703fa55566e9a48226b172fbe9605d48d38. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU8869763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc684a6ac7016e1b55670bab070c8001c16ddde2e1f5ef78b81b8acabaa50386. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU8869764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8dd1cbb3ea1cf602c5a96aec6b6ce062a01ffc42c9fee7166c7601ee6835bbd. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU8869765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb4b61e51f70dedd28bae4e403f533f71ec451d493164c66789354724d561388. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU8869766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb808f2aee90a9c3118a9389af61e841964db740f32de93a66cbd241624825787. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU8869794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe684e25c902bd7aa66152aa96666a66204b06279a6c298d781e4403d45125122. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU8869796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x018693ca2760d39da32b65d4c8f29a11131b98896138a0c5716bcf0186028571. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8KD2447349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41a5470bed2d8290331a13172e6a01e4b6c1218122f1a573ef836d786093ce5b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8KD2417486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ac9481ee0c574f77415c3e486dad062e2cee462665635011c70d2a09062aa6. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8KD2448879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20ebebdc19c6c2032d6603abd94cf5879feadc2a3b192b49cc4f137275369ad0. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8KD2451706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9436c394ad4b98c5906ff17b460475cc87b5de25f4b863281202d888098c6fdb. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8KD2406439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc56beea3b03002403fbb2747d9af60d185cdf426e4b65ad420b66ce4c4dfbe9e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8KD2429698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6056ea987dcd0dcf80f16f198d191e0974f43bd816000f9cf29ce077018f6d11. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8KD2466986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e122f2b4534cf0e22b6f02f2a2140883d46b52a47b6aaa483fba3f2933503d2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8KD2414069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59d85d0bc0dc4d39e990a9c8d5a53835c20995fdd91933ff171aeeec1c2c1745. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8KD2434873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x918260dd6eec016a3655107de9b3d0b366253a3e742d69dd760193d08b342477. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8KD2470602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4fc89edbd8481691cae3c28c9effa0d19109a51670eccb1045735303540b85b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8KD2460575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x938e979a80a078113b8eb0a77c9cdbcf864576bb841f9ee9e8ed432ba0e77b3a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8KD2482377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ec6d8c750b8e143d44f343b4849f57d01069ea724bb5b0732258be83376e10. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8LD2471578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85abc9e68f9ae50a86429b30f7546694e8d9dfbcf8cf36477dda806dac1dda11. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8LD2406108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25fe6497ae4733d366609421049ced9d26b0f4863555015ef7d5b9fdbccb04cf. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8LD2449751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf87c67e56d68d9a8bca924440b4ac5ae6abcb1936985b48e65d629b83b791f32. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8LD2402696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96ae2a19bbdc043ea526f105e6f9f22816aa8a077c1aea628c21cb05e69112c2. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8LD2461567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50374ffa15ab7ea1b716f069236bd966892a8c888b3b4537bba9c5b73a896c47. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8LD2460268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd574bd2822a9278126d51eeafb43d1021ff00b11f2eefa8373519ff2dd9fe053. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8LD2473898.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34597371aaab5a5fe549f90e4f7a45125214160aa31f8b307885b448a5ee5e85. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU6463301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9504d8e364e4690917e26c44fdaf1a24b84366645d3c8253014918e6c71d0162. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU6463300.
Horse Music Central Vol. 2: Winter Edition