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 0xefd6d474936454401980607c716cf25487dc0b1424286297ae61995f889e4893. 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/8147dc30-81ea-4071-befe-55a3cd97bba3.json and https://artists.proofprofile.net/proofs/artist/8147dc30-81ea-4071-befe-55a3cd97bba3.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 0xeb914a1a2c5a5aa09cbb98c26a0b4e5668643e0fdc28878e790241eff9d012ad. 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/USA560910155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x017d32ead855fcee745e398ca694e7101792fc7a173dbb5db6e90fc0849c8fe7. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/USA560910158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8760da4ce85af629f7fb6d288f3a3592607094d708aece141f13aff5e1f38a41. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/USA560910160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x427cf01eaf24e949b64654b1b4093ac3e7d8c14e4c920963a87b89db4890178e. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/USA560910162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c8c29f1727d2fcfbca461cd4a4dd102b604f27691165ade5a576a53276ea06a. 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/USA370923551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2484a639adeff4ad2132d57a0cb6b812541502707223685aa1e68baf5ffa1660. 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/USA560910736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebd447c679b2451f42da78223d4e2b6d13bc1e0f5a23b4b44076839ceb0505f9. 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/USA560910740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d67594cf3a5cf491a7831028c2eb0ea5657176dd15ea38bbbfd2055ebba31a. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/USA560910200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe78d268b0668654f8f9b0c907bfc9b622c9a122ffac5b384fe1ba5777eca9f. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T15:38:13Z), 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/USA560910201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7e1e0948eb320e3feba9b2a93ce542c7b2d8e7fffa1b3e4168648744cfa5a0b. 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/USA560910203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdff8a5bc831d1939587db5baba0e9295c98d032bab90b21e1ea462f2dc010a38. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/USA560910204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef34867e7804041badd14e0e6f34ff3b006e5293d8e0ef2b894d3f287123c01b. Chain 2 (Bitcoin): anchored in block 958590 (2026-07-18T17:28:56Z), 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/USA560910205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aae0b40c3859df24611c833db35f021d9d529e5f562c3fa0ab30822e0a1b389. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/USA560910206.
Stop Die Wereld (Hang 'n Lap Oor Die Maan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf057c7e154e3b07eee9a4fc71d422a6b86e21580fa122ab6c434bd7e52e44f60. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ZAU041201219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cea3957b095a1810dbce03dd409c9e8d1689cf40937ded121ee106746b0025c. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/USA560847936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4ca5ceba8b64e8796b39168c6595f7f732afa758d7968add5a8a0b28066d39c. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/USA560847941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66c0824057ef2b819dd5e94facd8e32fd68a8f8526006c47ae0b660282bdab83. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/USA560847947.
Die Begin Jare... Sê My Lewe Jy - Volume 1
Die Begin Jare... In 'n Wêreld Soos Die - Volume 6
Die Begin Jare... Vêr By Mooi Verby - Volume 2
Die Begin Jare... 'n Hart Vir Hierdie Land - Volume 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d3b84b1d9406917293f438460cfd3e030a68f7143768a19d1480f5ee3400690. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/ZAA011300165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f1ed082b453c6eb2792f35c42abfaf6d6c69f4c6e91dd06fd45561aba0a4e61. 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/ZAA011300174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33122f0c804d8cbf9bb082df1bee8a05afaa4749f4c21fff772e4ae66302b0d3. 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/ZAQR42300904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33122f0c804d8cbf9bb082df1bee8a05afaa4749f4c21fff772e4ae66302b0d3. 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/ZAQR42300904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad2819f551100f5275bfc03c32a82e60cf167b3cd50c39f456dac1234467c55e. 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/QMFME2543852.