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 0x0e6d4c70d6b1377798754258277d21a00802f0def563acb61d1a8bb30153322a. 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/5b6dcca6-72a8-43c4-9316-d7c12521a980.json and https://artists.proofprofile.net/proofs/artist/5b6dcca6-72a8-43c4-9316-d7c12521a980.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Glitter & Doom (Original Motion Picture Soundtrack)
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 0x2cbf57211864c001ad12cd74a03074f761c744a6f63cbf2cc0a3a0fe642a4bf8. 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/USB962444901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50044c5ed9d417f453885ce7a17a8bb8ca8849167457d307d1536f598f52a7a8. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USB962444902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6848aa4d4d3225f3adbd1fe6be33dee190fcf2579cc7217afb91992a6fc73a9c. 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/USB962444908.
Get Out the Map & Prince of Darkness (Reprise)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa07d302d7f213b577e81dd2304535f84c7eb8a4387e636c5256eb3c21a5b4d22. 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/USB962444914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc096ac931de0dbda6706c5b27f9a886ccad44ce538d52ab51482de5a421ae969. 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/USB962444916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b20e54897990a09e28a6e78c64a50955cbf2151ee8602dcceccad482755bae2. 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/USB962444917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7815260f95388d863049cdeb95a20ec8330710a98e556ec8f452c5feb0be1af6. 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/USB962444918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb80eae620236e506afea00d70ffcef5f67e5b286e8b88ba5f905138298449fe2. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USB962444903.
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 0xbf117d0b0dddf541e5d5ae3e2f52aea3ca476dec3665d566e14c6e3cacc3c299. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USB962444904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c4588ae6781a03647677785d00aadb5594713314cf34a4ce64e3324ae67407f. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/USB962444905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf670a164bc8eac731cce9d590c9500be520b614fcd8e7533bc4a36eb8ae98489. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USB962444906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1d6fc5e30881ebf62bc07215801ca6761c9584c5436ec071f10aea820e6a83b. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USB962444907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58f07b65002e5cc3138b6f5c05c4726c77fa24d259fb737236477d2a01d40996. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/USB962444909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb691888fd2a754422879ab14b12946c5e3be2c5abdb111b240bedaefd2524f0. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/USB962444910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12badbd64b4d7b7860417cec3d63410c4d7bc48dbbb211a13cddc42abaf48137. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/USB962444911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x822fbcf39b85237be7e86ae789e9516b9aca0338aa543626f74b53309543ef57. 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/USB962444912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea9ce9dcebdb27ea45b7afe497007137fbac126eca3e3c2d651a439a79bfa7f. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/USB962444913.
Closer to Fine & Everything in Its Own Time
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecab454d8f5c8bb54296ed09a10eacd047fb2e17a5e78d09eee2cf1482c7a0c3. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/USB962444915.