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 0x0bd7b4d14d8cece61de400996527b31f113f39def32210c6069740b6c3ce731f. 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/fb028275-cabf-4676-94a4-7079bf1fb10a.json and https://artists.proofprofile.net/proofs/artist/fb028275-cabf-4676-94a4-7079bf1fb10a.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 0x88712ef1b35e7ca3cb45eb7aac9840898db5c939145b0e38b8ce36b0cd4c4c02. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/SE5752418717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d9b93fe1c85c91ef9a560fc10d91e15090f9d02ed1b31e307a4e8451f73692. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USA2P2350259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cbb70762e457482615c8e5c3d557bbbd957a762968e4ea4fdc57f00d923ade1. 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/USA2P2354946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29794a4cbf1c552f044847fe540245880d626d4a00151e7c67e37496a5efbd90. 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/USA2P2354948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a79a5655754b56f234cdca7cf246d80de3b7eac891be06521245b5e4325f5ed. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/USA2P2354947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7c47b135d29a3359982edc563ebf9fb1f5e97be4a0dbef70eaea72105df4096. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/USA2P2354949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3db557c25b32f70312e4aba1de288b28e1d38993ff9d156c130b01c9eccd36e. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/USA2P2354950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x568171e3d65497e9ff1894c39f4614189eb9128c87f52203da23b0aba043d849. 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/USA2P2420948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x366da88e7ecc25578da559f1a4809a2197a67719510344dcfede23903234076c. 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/USA2P2420949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b3dfb70b3b24b91e7b9fc19c1c5ad3da29e0816d48edaf6d752c4d44cc65d84. 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/USA2P2420950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d9b93fe1c85c91ef9a560fc10d91e15090f9d02ed1b31e307a4e8451f73692. 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/USA2P2350259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c8f7376d7a031e62bdded9f0e3e6936ae02b6f4ddc881fe24754de0be2fb266. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/USA2P2411756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x376023bcec2b75a105af76fa283a0ecc66ac6035d1658fecfbf7c763326a3610. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USA2P2401318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a372a07caad6a7d099f0fbd9283de1b710d2cab59ba23b842e764b9c009bc27. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/USA2P2361354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae871dc979719119152e8a432cbb6d0cddbecf8fbb5c90e7437cc9939ffcd5da. 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/QZWFJ2327323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d21e33a97decf401f86e003de7123a102f0790aab48779584dda9ac6f168b7b. 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/QZHNB2326342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6d86814776c7371e164e7f2c1b8390ddb006d26984aefe36e79e971e7e575ce. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZFZ32342238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80629a00ec97e0aa812d1881f573c01a0ee92bb7540c1a79826bcc893869e769. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/QZTAY2330527.
Alle Damene Går Low For Meg - Special Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2afebcf12ea3853a7da819cbb80f2a4f42ab6af2cb78379891da303a14216ed6. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZTAY2330528.