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 0x1d3cc1317a72cffa43c09f4e0671d1a2733690d8d3a3c3ba95155cd468c66757. 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/a2d3ee07-b9de-4e3f-9c03-668eaf83d0f3.json and https://artists.proofprofile.net/proofs/artist/a2d3ee07-b9de-4e3f-9c03-668eaf83d0f3.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 0x7dbabd1f1c8ed06f7c8f083a5e7ffd113915f2454df4c8e01f0fc228aca615c6. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:35:42Z), 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/FR96X1792709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf38edf8d52eed6b3358f3bc100fd06788f42d3f4176ebb1a7629189f436ce2ff. 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/ITB001900090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e6e7c971b911b0b3995e14379ba7aef739a2913d92e18e76ead82a661697570. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ITB001900310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x157b386420abd377e106572859308f33a6048562b3620af62a63d124a9cdf639. 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/ITB001900342.
Faccio da solo (feat. Nader, Shah & Disme) - prod. DaGlocc
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae4ff8077db6ca1e9b380e3736e936929aba5abf3f6dbc83190341ce890d8e18. 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/ITB001900343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e6e7c971b911b0b3995e14379ba7aef739a2913d92e18e76ead82a661697570. 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/ITB001900310.
Stazione Centrale (feat. Guesan & Ill Rave) - prod. Don Joe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd53c54f3b60993b7c29a862576090e3909d673879107dc0cfb77898dfb05d4b. 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/ITB001900344.
Pesche & Vino (feat. Bresh & Gianni Bismark) - prod. Sick Luke
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x188c5ed9af4f4c59fd779bd510b26332a17bbde11682fc7f5799337978b46969. 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/ITB001900345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa48e9d33df866ae49113de72219c1c26af31e761ab8e8117827361ea10599279. 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/ITB001900346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e75f565eeb143e3c460a935e5279cf36cf8ef231b9edfed1e9187eb07df4eee. 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/ITB002000478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d4c35954436d398bd2ff0c1ccd1e202bd6606297bb2bd8d8e563a293ba84e8e. 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/ITB002000479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10d141bc900acdb743e164313829b1b6739b0026c8928b5b6155178e8c9b1e7b. 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/ITB002000480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf38edf8d52eed6b3358f3bc100fd06788f42d3f4176ebb1a7629189f436ce2ff. 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/ITB001900090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ae4fe5fc327cb8ad680efebb5462ea98c36e2c552c195241514954cd6af670. 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/ITB002000481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80429504c83967dc16d490da873c879b0ed1a4e84de04f444e5b2d8cc5347409. 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/ITB002000482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe034c1a35c212570841b61a55a0ddf4f4a7b589bb53f71c4ac5ca50650d5de40. 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/ITB002000483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b17e8237223a8ef8000ff9b3d7c5724488cb6be7961dca06d6f45be8e63f7d. 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/ITB002000484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac10f3d3168c97a5284b51b9022f290a78fc3fe19590459b6f125c4e0a14e74. 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/ITB002000485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc097ec81cee384710e9636323c23c8b82069a41b2181b04e55ca35d54a4b609c. 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/ITB002000486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8d323051d654680eef3cfd513024b470292790310d7faa6e8cd2c30f2b0ac31. 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/ITB002000506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fd6f79fda10b8ac3d991c5ddc9300ec71a9bf28df51556ada0719eecdc3579a. 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/TCAER2064123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde6d436e526b6767def3a5efcd325c6207f27ebd6628489e959e11d509e034a. 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/ITOBG1900011.
1312 (feat. Disme & Vaz Tè) - prod. Beak On The Night
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c582550347b0c692ab013a007e1ed10de7622514de196d7121368cce94f81ef. 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/ITB002300187.
MACCHINA PESO (feat. Vaz Tè) – Prod. Chakra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0138664881d7a98deb1db24f57edaa55148844b57821bc9f3ee1d77730af58ec. 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/ITB002401507.
Jolly Roger (feat. Izi, Disme, Bresh & Vaz Tè)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2155a11c2750eca924c670d0a75b3751604ab2caf155f90eb39e7ab4feed83ca. 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/ITB002400544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd4940d47d3ab62f1887fcdc9b434a5cce8e780a01117dac9c63aa24b434fd08. 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/IT1O72501287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc554ac93a61508aeeced12e1171a3a5490883ad527d4c401a0369395f7c61b69. 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/IT1S12000008.
Vita Vera - Mixtape, aspettando la Divina Commedia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc554ac93a61508aeeced12e1171a3a5490883ad527d4c401a0369395f7c61b69. 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/IT1S12000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56d4612fb2dbf1974d06e6db61cb70a6e043221080fb274e92a42384450bf022. 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/ITB002000422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8461c841f83ad6bd382a349dfcfe4170b11174478d04618208d78669a224200d. 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/ITB002000050.