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 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 0x256fe8aadf9e7c84879368a54b09c2cb8e3fa204a3dc2b033c4d72c462eafedb. 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/19e5530f-3050-4b1c-8cd8-996908207155.json and https://artists.proofprofile.net/proofs/artist/19e5530f-3050-4b1c-8cd8-996908207155.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 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 0x66ab74db8e4f5364ef51b54f7e45c5bb8a3628ad876af13f8e9b97f94b0cbefe. 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/ITB002401417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a868014f011a8ded3060129e2fc5fb8cfdc868d96ceca067e46c6586448d6c. 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/ITB002401418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df9f085de5c5f95074bfe68320a73457c28756b5458122a5eabd93fcebb3bb1. 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/ITB002401419.
Money on my mind (feat. Rose Villain & Artie 5ive)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b3d4330e712d9f82c65452e3fb03a6657b5cc45919b0b8928c6613259dd446. 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/ITB002401420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa489b68bca646926285acf44260ccd47d011cd59eb829e596cb6f1c53697bb52. 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/ITB002401421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec5020db6f2bc08f73b04700c71233efe560a76be8c9e8d6b88ac9bd6e27ea77. 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/ITB002401422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef03a3d82d069aa62be3f0c965840db0f96919a3371972bb62e8ae9f6196ffbf. 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/ITB002401423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0deb303f413c855f49b36731ce3d19779899a9c34b2b4e9839c9da5dce9090a3. 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/ITB002401425.
Cocco24 (feat. Noyz Narcos, Tony Boy & Papa V)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5f40dd6abcf566498ab9af4ac670596e205af351962b2610555f4b4cee0c653. 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/ITB002401424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaddf32ad6fb58dcfdf38828fda44bbf25fa325d02848fe39d53b5b6a5bdb49ba. 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/ITB002401426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53c729199831704a44c3d9842fa3983ab4ba6681bfe6bafacdf5b2daa757ba7a. 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/ITB002401427.
L'ultimo giorno del mondo (feat. Guè & Rkomi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c3adf8d828b5899d6b6ed8af728b9b44cf8a16bc8665d899f7087a02c3f2fc. 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/ITB002500035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c38b3175a337cda671e53c22acb4326ded1c318e0f445066033d4bde2b75105. 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/ITB002401428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4461ad94ef85828ea98ce02febfee512498b6d0516181c21e5297669919ead21. 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/ITB002401429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2896df389adef2c15303c153b5436cc88e58e5972db30ae3401e9fb475854b01. 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/ITDF62177153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17bb24b1999d6451a2e739a60050e748dc3d48a9e9e521c28ebc87247f4b5052. 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/ITDF62177157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e6e79cce6c349f62a4e458941d1200ff99c34b70167525deecd310672d9f705. 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/ITDF62177155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x856aa0819100c95cddefaa8b2fb5b9a2e878f96830d2f8f76bb2537e7ebd01ad. 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/ITDF62177152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c8fc8aaa0bcf2dc6185a01925bef4b99049d5016496625f9cb474682cc85387. 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/ITDF62177156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc46c77de79df34438757a6a2b96d3a9dc45d4235fd0341f3f7f3ac3a4730e20. 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/ITDF62177162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x331e5df6274bf2e110144c37db329b3fd933eac9095133aa6119b93fb5bd4541. 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/ITUM72301560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23800e0bf74df8b761b62852f39de3e0ba249cae7352206a4ad2b2807184f1d7. 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/ITIWE1900094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0537463de66b8f23a0ddc27dc9ee1c06dde078be82ac3183cf2c9846fbd66e1. 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/ITDF61977007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01ded8abd3cb632e5a69d742452a1c5ee0fa974cc21f083d46fa95a847be76d0. 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/ITDF61877056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b040a72ee8bfc271accc173bd0670ee70a7672481906381c48563b6da15df7. 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/ITUM72201109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d06c24f64929fe9ba05658001f056e9cd9f73ac792147a435b0ea0fdc46694e. 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/ITUM71900833.
Fernando (con Side Baby, Pyrex & MamboLosco)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36a44cccd900abee33cab856090ee7bc09473347cd1a2d60c3fb828d17c08397. 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/ITUM72201478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8127e3fd0be6faba5a55bef5b35bab5458cb64b94fd4a0d419c44294a6514434. 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/ITUM72201080.
Diavolo (con Ghali, Rkomi, Tedua & bnkr44)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe9bf668226abcf287b3389d0f5698441597f87c17e6101e32261cd5aadecc91. 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/ITUM72201091.
Blessed (con Madame, Drast, thasup & ARIETE)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53fd23faa29b03a711fb7d79506e108b049b1ea9ffdb65161df85bae5209226d. 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/ITUM72201095.
Marciapiede (con Tony Effe, Ernia & Rkomi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aff4c28da5c8d0e48d94e9f99f6d806732315927d158772135e4145040ec2e0. 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/ITUM72201097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x357a13db99388e7e41a81811d438f000e7c51438091dee187a187c046c8476ff. 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/ITUM72201087.