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 0x18f0789076554ce6161395230f7b0dd33f98d465d50f4dcc777c56719c68bb14. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e1f4acd5-5e07-4cc9-9d97-06da7ead7ccf.json and https://artists.proofprofile.net/proofs/artist/e1f4acd5-5e07-4cc9-9d97-06da7ead7ccf.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 0x2ebeba0f0c65dc6af2840eac5818c704405287339b28adfe4d61c259dc5ef4f7. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBLFP2572282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c9948f0a416fb92d13c29912dc1b6142dfd36c4e5aabedfd3420a6e77c7f22b. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBLFP2572283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa042caebb6b026ddd8ef78baad40806336ef7fdeb5c9e54fd7d4571994fd265f. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/GBLFP2572284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25bae301d0b4607c052d44b6e08ff9696fb86932227380e2731b3b9a089b0550. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:38:41Z), 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/GBLFP2572285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3424f1a253ce23332a984d28118cf59d2166a48189a05d914496a1bfee8bbc8. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/GBLFP2572286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb7da37c2b44a2b38d3ee25ecf50b2e37660782c505706de0241c742561cdb89. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T06:38:49Z), 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/GBLFP2572287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69dc14170bf5038488ef318306b95764296dd3cddedbe2cd072a3d4e41a65b5e. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GBLFP2572288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cfcbb72b5bd71444d811918e23134c15c10d6c53b16c599f80a3ea8148fc5a0. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GBLFP2572289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb0816b099971d57ee8b28a8147d3e718b15d6923bd192eeefd056e29cc0f7eb. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:23:38Z), 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/GBLFP2572290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x862d9eec9fcf7ef73e99729f50c5ce79b30b6cd5725a7aac913256fedf66a593. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:27:54Z), 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/GBLFP2572291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6746fb6399c9931cdc37deb45de17f7701947443ec2cff74ca20bcd29db61c30. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:18:50Z), 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/GBLFP2572292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a4559974e5dc29b4e3fca51ab9bc3bad90dfeda1a87b693c4f26883d3a3a167. Chain 2 (Bitcoin): anchored in block 958865 (2026-07-20T13:05:37Z), 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/GBLFP2572294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6006176b4307dd3939ac0e17e5e645089f4dc054100632ae764aaa58ee10e0c. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-20T00:28:13Z), 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/GBLFP2572295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66a92069df489da0e8ea055e1240b839ab000cfdfa96de7ae1c6f2dead2796c0. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:27:46Z), 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/GBLFP2572296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc77bc4c6783b2c39052b413aeae943a400f5cbac44f55945366249191d090147. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/GBLFP2572298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeabce0575ed4f8b7505ad91026b394fa0057a75c9063e3214e7746fbf9b10641. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/GBLFP2572299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a54025fd707f62603b90fa1a2f97f99698b1a9a50afe5be8dd6a8b0dd24f33. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:25:00Z), 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/GBLFP2572300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b34f03719685c867f652bc6bb9071d36cc07e95da0a3667984b5694791edecf. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBLFP2572301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29f4808f862fb1c46825499c6cac2a7794572e5c7799007f4f5e0b8a42db1c5e. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GBLFP2572302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b009edd02dbcb73b787ad4049ca35f65d388df06e31a1a25314c7408a7f7624. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:28:33Z), 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/GBLFP2572304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc03b5d3fed26ba31e7797998fa5bbafa8597d8d90e4b2f4cdc4914c9bf0ff295. 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/GBLFP2572305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadbcd5c86104b634db4506e09c368254e91d08b7ca47724cd4e8653ce0b95e45. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/GBLFP2572309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f4c169ca2593a60989caf2e0887e43c8b959c6aaddb8c71da2e841ef00e2d3. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/GBLFP2572310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0f715500febf3bd0723d04ffa5462635bfbc8536e3a3fb0ae1eeec67361c2c7. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:20:08Z), 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/GBLFP2572311.