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 0xccedddb10f531534e40735668622446471cea5581a7bed465bec63012b7b6fe1. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/240e0e12-918e-4ca5-9a1d-9cb3ceec1d18.json and https://artists.proofprofile.net/proofs/artist/240e0e12-918e-4ca5-9a1d-9cb3ceec1d18.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Liondub Street Series, Vol. 09 - Calling
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 0x0149adfa26a81805889b97d41cce32604a274964b19c79fd915f909b688bb7d2. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GBRD51400385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4cb4bfb45929ea321e32aa18fd63f9862ace21ede1ab1c11005f8330b5f9a18. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/GB8KE1856021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd087d98b2eca0b22765ced02cb7894853d9b2c13908f072edd36b759593a2243. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:47:01Z), 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/GB8KE1856023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x606bfcc85fbbf3103f6d7bfea9083178ec51d4fbfe9b1ca27a64df60d30c669a. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GB8KE1859392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe26c46747204e04f7957a698f8e64e4f58a5c10360b41a19c6510e2c91718276. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/FR10S1986466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe26c46747204e04f7957a698f8e64e4f58a5c10360b41a19c6510e2c91718276. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/FR10S1986466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x834a8b0adc393bcc7b38758e56b04d9947705aac758197a778a80b293d0f3ef3. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GB5KW1904473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79a0b9e385212297c39afbb9c9f3ecd466816c5922a43e77fbdbca6c405e1ad9. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GB5KW2000559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb92f87724c01d32ebbf9bb0503e308bc19eaf4401b873f4754eff32010bf0882. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T19:11:54Z), 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/GBRD52000273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bff7ca14e531a014e68a08e37613356b2cbb510fccaea87b49252d5698a7679. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBRD52000276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8430396ab245d627e9341384d841af623fa90fc0b9df6b7aaca791641b9a900. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GBRD52100156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a0df15f4d1a6ce74399f7500a5a38e7c56f89d7017bf41774e1bfec4fc03f02. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/GB8KE2215323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2db095309723e4e050db3b4ee82072d428e2eb2307818a3ed173e480342873ca. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBRD52300078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe0b74dde77f7c9288c324b52c4b04fcb20cea96696bf7f41baf49b413a57887. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GB8KE2317371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8213cb7e9825a7b3c86bb4f4d5741be6cf099944e5088ed0ad210c29f14e0bf. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/GB8KE2317372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9ac7ea841b102651b4ea2b5cecbb9bc9475a9601de1695c382f32535fa4f4e8. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T11:21:55Z), 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/GB8KE2317373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fac21bb7eda0d0e729296910e341ff9fcd941a438ef3c7e3847273274869fb1. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/GB8KE2413307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16da82f89a5dff125f94ce44421c3f33189721e5e3cc640cb446a4c568eb4d84. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GB8KE2413308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79a92e58ac17e70aa385306ce21ed69a804dc0f3d7f10bf683baf3d93475864b. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:08:18Z), 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/US38Y2413493.
Welcome To The Jungle, Vol. 3: The Ultimate Jungle Cakes Drum & Bass Compilation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5559e66d9859477ad35d6532c649e9fb7325c0da7701ca903ed846b590cfcde4. 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/GBFG91512753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c40401466100d182ef541c0069d89d3b8b0f705d418365479193c9645b1a42f. 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/GBFG91512776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x562432702dc75cefb6e3ff26eff7e924b3c118114dd8b53d19650bfbb1def231. 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/GB2LD2010201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc308dccf88b24ab0b3e5ba90b426f550faf94087fef9c6fa66cc0ed65978128c. 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/UKQHJ2100026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1c82de45d78286817f5b5445d2a91a5037666e98f17f93f1f8579626c608331. 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/QM24S1807149.
Welcome To The Jungle, Vol. 4: The Ultimate Jungle Cakes Drum & Bass Compilation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4985e683536293489bcf23b03a4141f1d5e9d516857d5009766166db0db1bc6d. 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/GBFG91600079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef9b1ce60935e53db561facfedf49f986dac0e2c33c753b52eee9644fc247ab. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GB8KE2206592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ded5cd904eb9f00f4450151ad3244f5fcb8da28728b1fe364a8e31f8d0782ad. 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/GB8KE1859814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b790df99741c742fef27daa98c36f1bc0db1769b90b63e3edc05b9d5f7a398b. 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/US38Y2421371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d1cace6d1af0e90b3f63646c083c44774e282fdb497da792e8d0ff3b86656d2. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/GB5KW1902588.
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 0x36a0212f9f13dbc1b838a5545fc3bcfc3fa87cc5b8b8ee396ebc1a03f1a79e3d. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/GBFG91512747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa363fc015ec9f16e14e08d8fb2a999e44280ec5a5844bd9a0118833dea75f053. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/GB8KE2206593.