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 0xbadcd1e5c4247511a08b2cf2973cb95c4fd249a2232f2aaf275ce79aaaa3f20a. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2b138487-0996-4fb9-b0a9-2a096c22f2e4.json and https://artists.proofprofile.net/proofs/artist/2b138487-0996-4fb9-b0a9-2a096c22f2e4.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 0x926d7da0b9f72b34fc5ddfbf37ba9100e57e2a302e78855da2aefcc99251d978. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GBKPL1669538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x948adf5130b412a005121d7838f73216505064b6bd1e6a24633654a98de8b525. 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/GBKPL1669539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x696fafc8224b368deec7721fe65a4d3afdf613dc828c8d8a045a5f761347f056. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BE9GL1700011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4b0fcb65bdab455e00211c4d3b4d6c8795aa51d6a772d61ced16ed552c0d322. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/BE9GL1700013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69baf979f483c7f4f1352767432e46775de34d31ebdab9f4523ca05d20cd4114. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/BE9GL1700015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43bb7df4e941b6c501e7ce24d018aeeff5a2d4708040bd091c46bd8023a001bf. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QM24S2000870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb03427d95d5c9689bd4b08159af66ea1d7e190dc1fffff96e38dfbcad3a1f764. 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/QM24S2002425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd894517de399fadd6328b28cbf7b226d735c5debf784820f62d82ea0d395300. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QM24S2010008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60697c8fe094c9ea77a674e397dd06a41f8eaa000322122154d63a81aaec7a40. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QM24S1927515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac2e6c41e02b2e609563b217865ada62c6e392a3cb30e7c47601d923bd09a198. Chain 2 (Bitcoin): anchored in block 959109 (2026-07-22T10:05:48Z), 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/QM24S2010158.
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 0xc193371701057e59a18b4a500cf6ced0c9496e95bfcb956114aa5a363e526306. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:56:32Z), 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/QM24S2102072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb3faa8bfb9f62446378e30d5eed21dd1a324d85ee053a3a6620c94a53d7dfe. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QM24S2300625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x136dbf96bbe0978236a25f3775bbb9082c0b8f22697aa869d9b054691e9bc556. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QM24S2300559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c11a03dfbfb818265b97a64a12a309393e78856c0d340561ab7e284d8ca942e. 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/QM24S2204578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d802adcddc24de0a6f71272231957b7ca105218f881fb606fd1a3c33a2e14a. 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/QM24S2107257.
gonna hold you in my arms (CJ Bolland & Club Mayz remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c6252f426fac43701f2f043e00732d327de017e2dba3efa5e380ba013d5ead. 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/FRX872511780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce69cd0295919b67af909ecde10bcc2cb52f98b460800c9153c0292e0f1d8fb3. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:40:50Z), 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/DGA052530324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c6252f426fac43701f2f043e00732d327de017e2dba3efa5e380ba013d5ead. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FRX872511780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5042189d3dbeb53cd7163a1cf54964ba085f4a182466640a87b9b4588123dd84. 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/NLC242100120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5042189d3dbeb53cd7163a1cf54964ba085f4a182466640a87b9b4588123dd84. 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/NLC242100120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5943ca9ee71fa4bce57aef5c241c482e0dd09319b6c8b807671592d2892f7bda. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BEP011500448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fc90b2f2e71a65213b0b5f0c80d8eb8ce8f84d8e5161ec1bb98852618cf366f. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/BEA032000193.