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 0xac0abf17e85501bf2336448256dc70b8daead8baf1ed527d54b848a1a9a05200. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/caf3cfd4-1f18-4557-9d4e-d91308b7efef.json and https://artists.proofprofile.net/proofs/artist/caf3cfd4-1f18-4557-9d4e-d91308b7efef.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 0x8a413cdad15d7bddfed2e6cb0322929ca2d9a88486eda1f9dcd31fbf55034864. 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/DGA072199709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb33114090a884dc41fe81d08c7b9ab59d0d4efcdb831f277f12274b2d16eab. 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/FRX282122482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2153708c272c5b3961c1f1e7f67cd17c1310ceb0642ea1a2ebe9dd4c663a423d. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/FRX452124683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeb52bf4844d7f759eed0c26c1895136f2f79dc6a2339f6ad1d97396e1f11628. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FRX452182049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf44c5a964d24c06d3328e6af41dd285536d0bce924d5a6af414b17a30a4c8a9b. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/FR96X2287161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f638c816a8839edfbd8bc48754cff58770bfc807ec141a2ce6a0239410d2f6. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/FRX872207549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x465113f1df2256b2b7d80a082a77c0bb563015639d2e10ae2f90edbc85b4df7d. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/FRX202356960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x696b91f1c0cb87209919651f108d924528b281cb0ec227a842885da01641726a. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FRX202390377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x643795d19214bedfebc0c7249e59b15d9869507b0cc1ac2227335410e2dd0b78. Chain 2 (Bitcoin): anchored in block 957569 (2026-07-11T12:44:25Z), 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/FRX762301719.
Cinto Dunia Akhiraik (Bidadari Sarugo 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff708b5e04c95ef8723d80a61f10fbc423bf8d99432ae1806ef1bbf245606bc0. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/DGA052311245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3e3ca04ef2c793e58a29d1fe1fae5103ceb7b872d2506feb77f50f159e3ff15. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T05:02:52Z), 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/DGA062302295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfebd20090aca0b36b79fb904fbecbd0f62786cad9ed94b9b1a33a4ec35409a4d. 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/DGA062336543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983cd00dca916af5cb18e42e5302947faf680d112a4a0b5102d0b1d39896d50b. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/DGA092328002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d592dc6bac63d6e040d6b6a5bc86883d514cd0a0062f57367c5c44cdfc3cad7. Chain 2 (Bitcoin): anchored in block 957558 (2026-07-11T11:36:38Z), 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/DGA0L2345365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x619dcdd32b4ecd22f7848795777081a780182952d24d18b1910e4c348eda624b. 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/FRX452420437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3653d32add1c31506db868610ec229c3d2b8dd93f150dc8bd5eecb09c6325339. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/DGA052453597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb01a40b090232f24b98d7e0e85af8d6d1eab040a3c1210534e9a96149cb7231. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/DGA0M2415338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9f7b42b98c463fc575bfc88b75a50c20e9e74113b1b3bc1523c37999a2abfff. 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/DGA0R2409733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74cd2029eec2f8d46ee8157b13dade7afd5bc98f3d8589fa30656676026dc192. 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/DGA0R2477605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a3bebea30d5c17ef3b14025f46b937d181bb5f3aa4b7f698849661a55e45126. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/FR10S2561581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1e5c96642d6e58d7832560d28fca506650e363185ab623404d692c4b5f10fc4. 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/FR2X42521370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d929b7e242f4e4515e9dbed4404e88ff4fc4f9079399ac4fb9ef6f4ff702ebc. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/FR96X2548257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51cce92b45664bbca1804a6e6773af24c7f07dda720250a1968acb2f77df3c35. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/FRX282510867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b7faee5ec061e6e9bde28645ac66b18b64be90968dc52940d75724c35bdb601. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/FRX282570179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e25f0c93535797c14cc76f2e90932f5ae78e0416719678f19ecee86d986964. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/FRX452533454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05ce604844c170aa2774d1d3ca72c62c3ec7bdef7cffcb81ec4924a4aa78645f. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/FRX452559234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8accee58bd1a863f340b33e73c10c05cbbc605fc750d156cee0e1d46a5336a9d. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/DGA052541603.