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 0x81ffd869554b1c40a8836bd0838b83d4521c63b36c00ace3874c4ad6fec36540. 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/a1400dfb-352b-458d-80d5-5a64b5ba9e4f.json and https://artists.proofprofile.net/proofs/artist/a1400dfb-352b-458d-80d5-5a64b5ba9e4f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Children of the Sun (Pleasure and Pain Vocal Mix)
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 0x98b60fba3002b9e17d29cd78cf76adf943139efa034c5d9f3811833fd78b206d. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/NL2VN2000019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d13cfc2680873421df89ef024ebbc18ceecbc4d80a614a2c30669e19250c2dd. 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/NLX3Y2000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab68fab23fa11f671c891a681e5adcad14c88d666c00af5264281c60728d5098. 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/GBKQU2094100.
break up with your girlfriend, i'm bored
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3425302240e76b276e127d809cb50cd498f94c5c1b48bb76e054861b09be69b9. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/QZS652116185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82f69516a4799f340c87ebea1be2b9460e6808b357de8839c3fd505f1a5ef645. 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/AUNV02100256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d1b637ad213e84e5bf804bd73f37931951a34b3aaac98a348d560f2e60df50a. 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/USA2P2336808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3d4ab209f9b288cead397d511d61d9aea9da276f71c93ab83c98341e99fa397. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:37:10Z), 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/GXBDS2429170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06c3cd63092e986b4156e2bbd9d03b5f2d5a0068ccfe7829b9aa0d9e06e59109. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/QZWFS2401171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbf1e91e15276fb66cfce00f9ea0f5343f9c32fe9f23c244ee84bba79516f778. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/QZZ7K2435374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ce2f77a8e8e58dce812b6625bc7d73f5702af84331c9d1ed1f1c57cb254799d. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QZZ7M2420023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec812399c17484d4caa8e9c3757a9cabe51735cfa48c1e3fc1c2ba0dc84def65. 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/QZNWR2530277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabfc8cfd8b3550d19517518671edc0227e9d668ebc392a78b5304c836ceabbef. 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/USA2P2529159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f0dfb934093d2b10759b276f9e33f7ef9f6815c8c44308f7bba694178d02675. 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/GB2LD2310237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63fd657fce071599a578abf5b6386713de0948b1810d0af78657fe0b6a11fcf8. 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/USA2P2300728.