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 0xc0f6cfcf7d0f70207cee19c09ea3e49793cce6c01b15769e5726b0cdd7551a13. 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/0ad8d532-09d1-4433-a579-81443e97ff87.json and https://artists.proofprofile.net/proofs/artist/0ad8d532-09d1-4433-a579-81443e97ff87.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 0x7040a6dd1ebbe411a5ffcab80ea671f2a9f319a300d8114bcd84ce02070daf5c. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZES62046399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc64b6a2738f1f0445ca7f648a52b94e47432685993f6292d93ecbfe68db09674. 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/QZK6Q1902958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x283b5122d0007b3b97bcdbc697938d72f926ffea23775bf1c82edf39daf17dad. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GBKPL2034498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x305be46a9ecf42e995548900fcbea74ba66173d3e00911d02986a2b4b4bda4a4. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GBKPL2148207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbece460ccfbf66869a4b1fb12b7627f9c51b1e6900bd30a8c801042aa33b8eec. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/USA2P2135208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ffeabbeed4e15eb88d9350a7e9fbfc87d2cb152b1523e0bf4551571e0c53ae4. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/USA2P2206546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10456abce765b09a1e771b7ac6e623225f14ef8334e291f35e532a31b81d3077. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GBPVV2300517.
(WHAT DID YOU EXPECT FROM) SEX WITH A STRANGER
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d26633e9f45df8a8aa51cc756fcdc444df1defdf45a3cd7aaaeb0173a698cd. 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/GBPVV2300519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddc3dc31e3e8ad4ec2371521867f16933eabaa43587ac4ca51e63249c130166f. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/GBPVV2300518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dab536ed49ed002a76f5df08d338fa251c8c4ea058d207c931788e11263b06d. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/GBPVV2300520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dab536ed49ed002a76f5df08d338fa251c8c4ea058d207c931788e11263b06d. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/GBPVV2300520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe17f69f32b70b2dbb728225631fec4f5cfc36279a5c1c413cac9d17c2ad44c12. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/GBPVV2300521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6d521edda2916f70cebc80d52a3240cef435a001958c8a64eeb41870b975384. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GBPVV2300522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07897af37c58962d4046d5a090f977ae50d8fedc6092b4cf0de3b9de91c6f2b9. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/GBPVV2300523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe691eeccb3f03c56d84b9c20fbe386447f50c880417f9ad1ef853d7ee40fd647. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T12:33:53Z), 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/GBPVV2300525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0154b5ce3c3003901ab4c108fc7bfe5e6a1545b4582774fbf801a2eb5d7e6b1. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/GBPVV2300526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde6a6a76ee741001698d4b0f85a165e7f217459b81940a44b12bfe457e115266. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GBPVV2300528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eace8fcbf866f0b913294573a8eaf72a83348c9342c1e4e97bdf7d870e79343. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBPVV2400546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3315a0415a2228d9302dbfbeb568e6a89d9be7a271f1d8103ab65ca22a739368. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/GBMVH2200360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfb77df5eb5c680acb349c31d7b107d1806483a706682fff5fcc9f7aa4cf0028. 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/GBKPL2154835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7266f51714554868ee8302a2f37cfb7a4b7d166510c66c90cb6b1d36e76e26e1. 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/GBKPL2154476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7266f51714554868ee8302a2f37cfb7a4b7d166510c66c90cb6b1d36e76e26e1. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/GBKPL2154476.