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 0x16fa56a7059201f76e5b4c6a7d77c02e86c0f952b16cbb872c55c5b7560d65ed. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d5d9f934-a427-4004-8aa8-687dce06e9b1.json and https://artists.proofprofile.net/proofs/artist/d5d9f934-a427-4004-8aa8-687dce06e9b1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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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 0xd9eb899c8f13caf5c4060661c93c952757ea22a55d7ed0f68ddc3640e534b9eb. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/QZHN72529982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c56551641558605473c033c221aa6f9adeff4706402c887e4018cada620472b. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZHN72522923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3754f6a01e2de5001cf5a66b1945036ceb34127c6af8c8a5bf8bd75cc8332b1. 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/QZHN72575266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7fc707c8e048c4e3192b5e846ead270dc073d64e601c4576f7f3a5ed076f879. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:49:15Z), 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/QZHN72589629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ff05eacf498f87d186a40d4266158fae1a5ccf03164daf2e75a0d043ca7224d. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T16:00:41Z), 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/QZHN92502447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x143c60f0d2edd2df31c0803b324e5c040a26c2e1f20c09acbebf59bdb4dd2371. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZHN92528956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9552c7649348e0d2ff224da9300240d9452018a9bef79b5f591ab19d98e2ea1. 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/QZHNA2520328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1566557e01f1576cad9d96eb84f9e265197234f17a7d38a4ec092f5ea9dd492. 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/QZHNB2586889.
The Perfect Background Music For Any Situation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dfecd0aa807d523219fb0802a28a1ca32f4e985b34d7a7dfc9247c726c3788e. 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/QZHNB2597064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff9fafc8f452a1f0a89a8dcec077a7dc6270e36ee57b99496574da98826a053. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/QZK6P2519419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f662587f8dcf6398b5063b8f47c8201ce11e45f0aac0a5a334dfd97fabff45. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T08:46:10Z), 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/QZK6J2570497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93b67a6bb1671aea637d246a5ea09b6f4eea7e6d0f12da2cb015d3b2524e9146. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T11:00:31Z), 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/QZK6G2539816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5275e9fac2493d4952989dc834f4769464d36d9e420d95c84d33c8fbd21e6a8. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZK6F2544975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43e26e9555e30cc94b89e2c8efc5273db66d86b23689b00b597b381c10bebf2e. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/QZK6F2593768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf51701f13d7574630d5662fda61e1925a8d6bffeaacfc408c8cdced2579f47a5. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T10:33:58Z), 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/QZK6F2592130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54f530248efece32ac335b95904c9e96f96ef78d3a7c2a28c9dc3f66dbcd0e12. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:39:44Z), 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/QZMEM2572468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c898accbb90de8bc24ee9762472bab98c4c200c437275a45ed64c7294e26b3. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:59:14Z), 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/QZMEM2572467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ea29c90cfdbaeb87ec05062499aad578ceab71475aad0d4facfd6e87ae0c8e3. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZMEN2553614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc699661cb3c0a74082c1ee9abdad89f9cc4214596d9fdf7f8fc8cd01409cccfe. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/QZMEP2559140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46b53ae328208a06f3824798dcd9c5126e6fcfdd752fae9bb36807234535e90. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T01:44:49Z), 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/QZMEP2560793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcafae331e8ffd2ba012c1baaf7d61c50f57d78e186a392346e3eeb4f5adcb5b0. 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/QZNWY2520339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e05b8164ca7b4c6616276acbbe15304167090245e084ab0578ff0fe13c0e650. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:23:20Z), 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/QZPLS2550714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab75f7c09c7114bb8c5db6e037ee7117a642423afb137e53720e4316e68cc58. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QT4K52521654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9a476b7038afdb4686c8c909d3d883f0925f468522719fa74d9bfbfea7d6bb. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZZ7R2541472.