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 0xf8a7a3e2d425b23cdc8a4739cc41ba2720fe78d555d29cf54459cfb1cbf08e6f. 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/f6befeed-9e3f-448e-bed9-25c8e170bd7c.json and https://artists.proofprofile.net/proofs/artist/f6befeed-9e3f-448e-bed9-25c8e170bd7c.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 0xe97f97aea250545f560922a54a07137dc6362b7d3f5605353f4e52fbcaa23765. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/UK3AZ1512618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a8eb1518a91f0569c0df65e7bb08b93f1aefa6afadb3be27d2df7f2b3bcbcb1. 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/US7VG2034184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5683490d1d24e1a2ea87241c3296d3e34599d2a0469a573b39e4e1db246d37b. 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/USCGJ1825979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea38e062556bfb2f50119d6303cac3948832c6104edcf6e071c4d9789dbe8401. 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/USCGJ1825973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8041af5304b18df8fff4694f1e4d3ad1d74d88150aecebc0ab4fd5e2e2ecd853. 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/USCGJ1825977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d32a95ca34967121ad7f81daf31bd68819f40a041bca39cb51bbc993d26a9f. 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/USCGJ1825975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18f2fbbb35e88334e9dd7160172f32cfeef069ade90681bffb6dcbba68809033. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USCGJ1825983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21dcd3160082340172babbb9169e21cf6bf0bb6c1fb6ec7e785b63c434edd5f4. 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/USCGH1892705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa11d2631f52f4f8608137481e736afc65ef3c732786c10a9762e7fd576e90155. 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/USCGJ1825974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaa6cf684b82c848e2ff444dfdf514575b0a36cbfd2e21ffcfd4fa2913dd9612. 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/USCGJ1825981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd22143a1e31f4865337eed380e00166198efd771393cc0c67ddc88bad7310a3d. 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/USCGJ1825989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb267305f91519953d0af9ab39b6b102cd9bacb4b61544d70cdace9315162674. 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/USCGJ1825988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce586e7189cfaada4ea12d8ff41d2f217a85a2f26e6612f0795f91165071678. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZY2W2300008.
Egedege (feat. Theresa Onuorah, Flavour & Phyno)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4deaaaaaf719b01f382f9921d9dd19790de8824febc95a5718aa39cb2dbb6998. 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/ZA41S2102095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c90c761aedbfcee9095f29e05e0cc2d462118f248c33d1f3bbf082fcb8e744c. 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/QZNJX2042928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf541323c52ecb99112161d5b563e08f74be3b70252dbb9e0d209b5d6227b767. 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/UK3AZ1614588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce586e7189cfaada4ea12d8ff41d2f217a85a2f26e6612f0795f91165071678. 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/QZY2W2300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fbcdb80e97ed71cc04eb5da7d2bdb83569f3525be076ab89cb68a2c9dd2c2d3. 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/UK3AZ1716708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfceb849c1aadc2fc7a3f2fe0f255543f7c387d2c62a3aa676ef4d50a6bd5ff15. 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/FR96X1758151.