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 0xc8091a9472a8ed81839d4d7697155b22401e0a09f62e3af46f372ca1964248af. 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/717b48e5-9c64-46c0-8ec2-cb6f0383ee79.json and https://artists.proofprofile.net/proofs/artist/717b48e5-9c64-46c0-8ec2-cb6f0383ee79.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 0x1b6e04ac62317c2c020d0a9b13b0b64c501fea98ba40e826f046fba030ff0152. 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/NZDR01300039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05edf4054ebcba27ac1a7ba1612ac93d0f7baf02aebdd100d4dec5ef42c94075. 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/NZDR01300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x990a087b23355d89b59d99535d181eb14c8e5de8457919823386794a19a5ac8f. 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/NZDR01300027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9991d69c231ff4578085080caa5257d0b4db0413e1aa3f77ba079068addd84be. 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/NZDR01300040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa353380c2f4a0daa42f42796ed7b070fb81b83ba90aaaffc0c6131922fd989a1. 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/NZDR01300041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3728e5bde03d8c400d158cfb0542d7108d469303a0fcec0ac1c94c31c1c7887e. 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/NZDR01300043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x522751be89f0453dc39dc3fce8e4854cb075cf3fde8e09749fa8c53b02fbf0c8. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/NZDR01300045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x663f27c03cba60ac08b97344db405971e5207c5b4135a3ece4bcc840ee0d512f. 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/NZDR01300046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e7c8cf490063d78ca800ea1b9c4ad121ea662b02a92aff6c4ca267f64afb236. 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/NZDR01300047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x395aa7ef1f73f267370176ba0e06304cc4aeaeb8073c27b46fc7438e4d39edd6. 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/NZDR01200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x931d6c49f2c5b3490dafc5259ed315c4e2d6887ec2d1cf1da9e8f69815661fc7. 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/NZDR01200038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75015817435cf5d5119004291d991113fcdfbd599eb40ec85fe0c491a04f0a0d. 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/NZDR01200077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aff27364c860c887fb11c0ae69dcdb51dfc9d1ebbd96b6d835ea97c1a0029ab. 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/NZDR01200037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78158e8997a1c54a9a5dcf6c6d7667ff77dfc326217ceed382bfe962d05a3781. 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/NZDR01300048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x022a2090ee94302fca70f148c6cf4eb504ab0e68e321e874970f2b7684ce91dd. 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/NZDR01300051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa82fa066bdcd6762a71d34b912ace5bc4e4b40d33b398219e26635b00e7e7e93. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/NZDR01300038.
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 0xb49e60cf1eaba80652d1774f7824be8957ed355efec2263e795a005e6f4d9bc9. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/NZDR01300042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed77aab6905a059a59a537b6481bc9889b54e2958ba7ddbac8f35957847fe0be. 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/NZDR01300044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe36f7e405582174f855882c6b3368f66c5be73f48000ec7ebfb44732b410ad6a. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), 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/NZDR01300049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5183f6c342ceea290fc3c0bd751c02c2dbd7b62a82b0b412b1fbdb070271ac66. 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/QZNWS2426454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb12fc5bddd61ce2977f5ad8ea32d510d3133939fa14d57da1c3d2c01743da457. 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/NZPB12202949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe422db0572d0bc9643821cfb72c6c510f736c3a6e06bcc0eca67fd690da62635. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/NZAM01801142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc5ba68746fcf19e4bca31f9a437d4eb645e9714a55ba12195db651262ae6386. 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/NZAM01801290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedda3afb5d3fd200dbd6162c15515b492a5c354f5b30c14606c21b46a7e5ed8d. 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/NZAM01800812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cf47fa9dcc582339456000bd775b9c300f0de2317c27c3b099e4edbab29b80c. 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/NZAM01801292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x950a4c574af222518d15a6269ce015212cb2e3c4e74412beb16cba4bff2457f6. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/NZAM01801293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x011ac212ce74b866a3c4bf1daf3814d180878a7095dec5b78d08ba05b475c03b. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/NZAM01801291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9459470c0fbf84ba6821f4d2175b7dab906965092700cc1ad5f9872908e3ba1. 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/NZPB12403580.
Link Up Season (feat. Chip, Durrty Goodz, Swiss, Black the Ripper, Flowdan & Rocks Foe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd80111eb5b1a61bc68a4a3fe9937aba0fde0e750d5dc7cda8acb10b040ebef2c. 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/TCACK1595069.