Pascal, Pascal's or PASCAL may refer to: People and fictional characters Pascal (given name), including a list of people with the name Pascal (surname), including a list of people and fictional cha
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 0x2aa501d81ad08ed1603170a30ef0d364795d81671a235ab4b4458031eba98bc4. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9accce80-fe70-4563-ba5c-46c962e334df.json and https://artists.proofprofile.net/proofs/artist/9accce80-fe70-4563-ba5c-46c962e334df.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 0xc487e40eba4ee8fbd81f94bf77660773ac7b0484d3e72b93aa4f2e3591168781. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/SELNA0500503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb8868771eb3a677a64adc760e40dac5aecc755f6a7a11dbcd9cbd597877fad. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/SELNA0700301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x112c15e5674af52994793ffcda5c843b474505950809344e845d12d3198dd88d. 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/SELNA0700302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa29ed5e04058ff8702577d30c0d6105cfcb5d73cc7a9160b0473695ca059ff4a. 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/SELNA0700304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44847da228f97ee84e66c53338d7b4c82733410b22c2572bd8485c598c157e5a. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/SELNA0700311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21cd75e4d565de70277eb57e67ab54fec06ca021efa07447c3d8463b4c2a5f52. 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/SELNA1100401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x358874e5fe85a96a8f75adfc04767bc30fa7d6e98766451dfd2504ad4f2c099a. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/SELNA1100402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf380b61133473227331cc81a266c5aea8f1a3986179fc43e22523382df9ddc. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/SELNA1100403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71368af6cafab3f8c13e821569726dae2c46c47c6272aa4466caf8b26708d7be. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/SELNA1100404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fab9bd1d2c46c43c428f76287aacd78c9962ffb93efedf958d7c0fd6cf6b17b. 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/SELNA1100405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4fa5201d2f29552be1f8b0a6dbcd3c6a3fc6338c2f883c9d63e874cc9213001. Chain 2 (Bitcoin): anchored in block 957246 (2026-07-09T01:49:50Z), 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/SELNA1100406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfed498df17f762e7dbf37c4ee39dc2d95b5cb2cdf81fcbbbe9d541f5566b247. 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/SELNA1100407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x770bcb2e286f44360826e026d1fd8004e2e082507365db0803326ff00d0a2665. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/SELNA1100408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e9d9763eef85857345f896d2e508b34d473fc50298f276246347fc85ac43bc7. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/SELNA1100409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d71dfb21f18f4aa2b46d901101fbfd951468070c50c061303b22ce510158451. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/SELNA1600401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4211ca6cf0416a8d291ef1343aff624ff9530149e5a7300f6b751297b97d7d0. 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/SELNA1600404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be4369bbb0659d109aa6149c3f4a140da285efd82349bd12dd7905b3c90457d. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/SELNA2000501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa51412dddc6ffdf310f9759141ac24cbc1cf0706b51c065ed75e08d309251f00. 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/SELNA2000502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cd9710e12f6f32462817b5e36d6844366d9d22d3e245c0a5a7efe22001d783a. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/SELNA2000503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bfd5e62986bb0676664ecd86796fd6b3931c9744a2fe141f021785ae577208e. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/SELNA2000504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x176f553a70526dcb9a54a143c1f97a765ff7dc6d85b2f6a6dfda05dde51af572. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/SELNA2000506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a75941a8ebe890dee0a2f5c9ee4ae9b82153d9b1265c336ac91cafe13de9c4a. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/SELNA2000509.