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 0x6c81e05a37d49f930afedba0e463812da209faef3b1d61948ee5d9ef2f46dacf. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/721ac844-a004-4057-8e32-6cc4658d1f0b.json and https://artists.proofprofile.net/proofs/artist/721ac844-a004-4057-8e32-6cc4658d1f0b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Il Doc 3 (feat. Tony Effe, Slings & MamboLosco)
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 0xd7d5684b9b5dfc5a904c32c3d62288dd084422612786f002d6bf7ccff0d62699. 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/ITPPB2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf63132533bc7499aa617b982aef45c4e7fd80681b9b2ce5824d9ecccb52f0f8b. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/ITUM72300859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d27efa7a23f366fe3d96f684fbe8c4dfb74b45f5faf8d1d9f3d907d0d2bc07. 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/IT1F72000058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bfa7867cccc8b0b4d4998f4c5bf9a3a42d8c2bc600362d6e9cecb0a16cbd195. 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/IT1F72000057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb251db6aa642c125f88e16a92ccbabf3104da907fa794c1ce02e942ef926770. 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/IT1F71900055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bfa7867cccc8b0b4d4998f4c5bf9a3a42d8c2bc600362d6e9cecb0a16cbd195. 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/IT1F72000057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0ae838173fe7c719af061638c83606ec0619dca56843456aa0747ec75b64dfd. 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/IT1F71900053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf920ffb77e9ee017d30692b1eb480e90dcc2c8aef475c6a45f5ae9566a94809a. 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/IT1F71900054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb251db6aa642c125f88e16a92ccbabf3104da907fa794c1ce02e942ef926770. 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/IT1F71900055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa93ce12e39dede143901fb7829363e085961ab0a1e124efc679b5e13f1d1cce9. 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/IT1F71900052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaef9d9393e7ace4867e4b9f116c1f012c5284a37a4813671d3b2da2c7e8bcb5e. 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/IT1F71900056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa93ce12e39dede143901fb7829363e085961ab0a1e124efc679b5e13f1d1cce9. 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/IT1F71900052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa230a431e01dc64418df50bd513db2de6b3b00c529cc7a77ad2290aa6224c5c. 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/IT1F71900051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca74e1a04d2c9ca3e0798bd4ee2a32baf092e0ed38dff546e04bc34a8d4a57f9. 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/IT1F71900050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x548b571cd5e1a81a4eb5f423d7837c931904ffeaa4ccb2a3ff8afbf67eecc6dc. 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/IT1F71900049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d6a073dd52a91fb71079d0757de2f4856b626bb62f0fcc7fbd06e2eea534ea. 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/IT1F71900048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef341fec5e0f1700f5372efaaf2bc275955572cfb5799e764002dd5c2ee200e. 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/IT1F71900047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x893499a48d9f155d11ec50247ac29b092d2f0592820c8182dbb15820449be3d3. 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/IT1F71900046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb36eb3a4763b1130266c5134c2c66190821a814faa96904a680d4c59c873d7d. 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/IT1F71800045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd46e1d7ee0ce4763642c728422693cec13efbc761a512491b0e7de48999434ca. 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/IT1F71800044.