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 0xfee14242ac0c92a2106894ae01bc82e4f3a7a930dd17a56635881ed0e5b7a00b. 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/214b956e-07db-4366-8266-a6fc127d800a.json and https://artists.proofprofile.net/proofs/artist/214b956e-07db-4366-8266-a6fc127d800a.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 0xa11f122ba08c8e2b0e7a3a3b8339eb6b1ba480aa495704d8742a4a0733b6b12b. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T06:45:31Z), 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/NLRD51960107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86cd91559ac5ebc4631f6b4911e7ac523babe635c385e5aeaae12f57d16fe03e. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/DEAR42145599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e27033f24062c575b99a73efaed7272d0087a6c2cd9c8af07dbd86bf7dac857. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:00:00Z), 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/DEAR42113673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e687cfa8eebe9b9b6a2ea464c368e64b2e437dafc31e0fce68c24278fa12cba. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/DEAR42112433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fae2d921082ba90dbe08b3814f7ab804c5b20aa7d2231ba1f719c1221d6801a. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/DEAR42290087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25caa6dd815a65ecf6388af4efcef9afa3f9d74c1358ea86bdbcb4f85a74f9b0. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/DEAR42235111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe8acb1f4cb067ffb1bdf0d1216c2ce300fd3517093aca9348a5db1d1f8c1f2. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/NLH2L2200514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe109cdbd38ef68d2024f0246e2ad2b68ccec82d69f4a8c4d128c07e960bda038. 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/NL3GR2306502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0804b733bb373b28d37bb0d14d0dd86bb332541c842291a44ff606e07fe6934. 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/QZTAZ2433150.
We Come 1 - Darren Styles Remix / Kenai Edit
We Come 1 (Darren Styles Remix / Kenai Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7802f12acac201aa58ee7d75015df9718f6e0e93d9d916aed0c613314cef21e. 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/UKRVV1900336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e447baece37b65817055ad06154337c2b670add1ce687c4f69731326157c033. 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/NL3GR2407202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e447baece37b65817055ad06154337c2b670add1ce687c4f69731326157c033. 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/NL3GR2407202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x450c3506c9033629a15796ed79f025c48bfd213a6f76128051309bf800e03e59. 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/NL3GR2200802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc81082ea7c8ca6e40329feba0234f1f27d6bbf45fa23092fa9f6dc72c353d96. 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/GBKQU2439240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a71b0d1354d5103173997743b6d66f726f04c00054266d08db10debaa54cf2d. 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/NL6TC2200702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06f975e21dbbf225264a2abe23043de8de9b3171f5a4a19a6532f6166f9eb4d5. 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/NL3GR2306902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d29c284b3375294dd3e0dd9711d8e7247f24bda557eca36cceefdfcc7c2d633. 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/GBLV62412334.