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 0x2af49e2726d5d67afb59f75ac678d636b4846ec6cbbb9e894f9b546044ae6d00. 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/7b034744-dc9d-406c-a1af-4f1838d364d9.json and https://artists.proofprofile.net/proofs/artist/7b034744-dc9d-406c-a1af-4f1838d364d9.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 0x0fd38a6a1688612f3ce3f5756196e3ad1db0f5b8f3f3b9b462c9b76b485181b1. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZZ7W2588202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0f1fa707451794246d223f6ae7b7f0118e114d36fe4b5c07eaa62daa0d12e35. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TCAHA2383181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaafc0580fa6d8953cbcb33e0b8630078c16708fb74571503a0916a3b399e9e5d. 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/TCAHA2383227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e7d67f52c456b9a308af741c14cab845045b377d6e83123f733c7525a4e474f. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/TCAHA2383236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fff6e308ca8ca5379c4106f1fadbf7422fa13672a9f2819bf20536590784503. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/TCAHA2383254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81a3e27059ababa7ce698d571c6120f95c7b86007de91f1446e92f43f8b40473. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/TCAHA2383255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa30942ea589fe901b4aa4a7b033ba1988f091763411e88938645b755675d0c9b. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TCAHA2383265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x044bfae4b19bd999f358af27b793e85c4b1e1aa1b9d23b8ed922d4ae63e66f2d. 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/TCAHA2383288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fe039e13d8e941dad107cefbc49daff35d34b3b8d5a102861a5509979945506. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/TCAGO2218543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x353f4fa16237edf4a8c30b48091ab1f8d29a78d7a8ad5f5b2b609370c0af70ee. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:59:38Z), 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/TCAGO2218605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d45819244591d640fd711fd9ee544bb094332be736533a0e08682a949c84692. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/TCAGO2218626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x609d32b9b76eb4707fc52c03f3d21108f8b3491247f24ca693d441af41012a97. 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/TCAGO2218639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe65472cf1b8f9a28ccc446e63cbf2f752246abec83143e2db384b88c1fbfd436. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TCAGO2218642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0f63af0b94e5f5c72b902855b19e2d532c55870f7012a3f12ceb88f3ff5bea5. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/TCAGO2218648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ecd8bbde7dfdf0a7d86f34cbaa94c5025bdc89f00dc99e4a91c39726714e42. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:10:04Z), 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/TCAGO2218665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfb82512233ab904e27489a029f9dd922daf54281675660cdae71f479617f877. 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/QZES82257425.
Psalm 148 - Loof Hem en verhoog Zijn Naam
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42da95bc186c838c5aab3b912f8c1971241c19f49602144030b2cdb0d4b7a54b. 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/QT3EY2566866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f7d818466336ea44a8182f0f3ffe037ac6227a8b5e5cf5db5a6e85e01d9056. 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/QT3F52539721.
Psalm 42 - Als een hert dat verlangt naar water
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fd723e54a9e51f6830c555711643ed3cd62bd5b0487899144cc0855e5a4fa61. 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/QT3F92562122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a1ee897fff4d01b4dab3234dbff74f79e11cbba1cb37cab64068f6a78b57c7f. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QT3F92565485.