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 0xd2f47360f69fedfeddb8b9ef2134048d9080b172ccf8c20571374f927d4c6ad0. 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/f75f31ea-92f1-452f-b12b-5afbe5829441.json and https://artists.proofprofile.net/proofs/artist/f75f31ea-92f1-452f-b12b-5afbe5829441.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 0x226743b0602707fec162e06e446ebf6a44b995d3c237a7641a701f70006d9757. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FR2X42375634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7c816bd804b054b94228add2eb5dd8ba64b0ecc31ee98b867c82fde39295db5. 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/DGA072243919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0166bccd9acbc967ad3cea55e8280805de6d9780a71bf7040910b5a642b6cf47. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FR2X42375635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c162fefc847c208b79922db2470d58a79e6faf5cdcc8776b10520687a1d8927. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FR2X42375636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba951882b5135011501868e9e3fcf4c03670d8b68559d67c9af8aaa65e73b0e8. 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/DGA052294223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd9a7e417f41c1f6164b89f595a156b10a1acfe9d5d45110316f18f1d0c6d7a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FR2X42226357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde476dad7f2886cf49f9512c9866250e9eb2dd4ae02196c441f3a102fe1f5fa3. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FRX762265012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72ee472019eaaaae4e07117f06c65edba6396f72175998c821dd5df652a6dd80. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FR2X42375637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc18dfdb157469a1522eb568359b8d944631063e885cc911a14a40f34e9b88e4f. 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/FR10S2307836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31d6849283301bd9716e3b655ee986cd1db2492cb7186379eee2f14df0e8daa3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DGA092348139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7356d447598ca4de9dc79726e3e64dc004937a507c1d6824df74ba6fff4dee3c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DGA052307783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba951882b5135011501868e9e3fcf4c03670d8b68559d67c9af8aaa65e73b0e8. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DGA052294223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde476dad7f2886cf49f9512c9866250e9eb2dd4ae02196c441f3a102fe1f5fa3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FRX762265012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x836dc2b19d83a480144f8bcbcd7a0dd7ca7ab7f6025713c3daa8d69e107a4f5e. 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/FRX202212174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd9a7e417f41c1f6164b89f595a156b10a1acfe9d5d45110316f18f1d0c6d7a. 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/FR2X42226357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eff5040c25231b25c177c0607966e2c0780dddd773118f21d3efe09d47390a0. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FRX762159208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7763788aecc1a38edbbe344e96687955853ddd01a5587d6535ad90a55b0936c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FR59R2141498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b8202a562b17eeb2c63e972572009e06aae439121ed567ce9fb1090d30fa1e2. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FR59R2141499.
La Película Más Taquillera de la Historia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44694638235aa07fe74dcbcd24c11f566fa042e32c46bf562b416582f577b774. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DGA062026112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd3d8609be0664b088c466e8bf4297f7db4b7212ac374f49ae66ec42441d7481. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FR59R2141500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eb7383c333fda12fc24a59dedb200575b0d96a8ed20b23e18c008c419fb621f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FR10S2133514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0ef4e15f44012066b633eeada505afa5ae72fce1f3e3b6a5db9b03076e1b4b4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FR2X42118709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0ef4e15f44012066b633eeada505afa5ae72fce1f3e3b6a5db9b03076e1b4b4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FR2X42118709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eb7383c333fda12fc24a59dedb200575b0d96a8ed20b23e18c008c419fb621f. 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/FR10S2133514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44694638235aa07fe74dcbcd24c11f566fa042e32c46bf562b416582f577b774. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DGA062026112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa3fe7d0de2e94b2f24255a2b3afb1a4ab9c49aae7bbffcb8464101a66fcdf3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZHN61943513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe9a6d03810d4f33ad21ff3e653385ec3b02784d0c2031c73850286ea4451b9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZFYZ1925754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac0bf773dc92e4e4be47ced2ba24d3ff8273942f913cd8b1b5f939808f0a6fa. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:38:04Z), 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/QM2PV1898760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9c542527b83f19e481dd1be83eff453bcda6472ec39c17e689a4706f2709308. 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/QM2PV1898761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a675a4ad2d5ee454eecd905c40386a0b30f285a5161fd7a3078c43accc312e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ES21S2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae5f4e8159c832dd777ae8a1a8d812bb410c67c6fa856cddbfacd0728691d02d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ES21S2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fa46e5f3a78585132cd6b6b18f5da715142530ba75b79c024e106796f93fd3a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ES21S2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x818f5809bdc61dd673ad1ba23a3c8dd8ee5a5681874cf5af24e39ac3da109179. 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/ES21S2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc718c2ddee09410b14670054dff191e58899e9d14bc284526e4a558c637a5f9d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ES21S2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf5673e9f02f18176152de4706efb1a5e022c8d870efde8696f59f2813723883. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ES21S2100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x608f552fa455e533a0d61cf4021330f29b17e142fe8883e79190d0fc971af5fe. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ES21S2000064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e587c11cc8919dfbab03c5e74129c2de6a7aca5dc4edfc242b8d048d5fc238e. 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/ES21S2000047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1ca7facda6ccdabbe4e49c6629a83f4971f0a4070f9d04167eb68ee24d00e4a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ES21S2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4778929cbb0208d973ab0c911d9c55116875cebd0d44346bd2f85caaacfeb4cf. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ES21S2000041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x571b1762be499118f4bda54d1370f6bc7081a1d69d18b36763f95386ada1135e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ES21S2100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f54176287f1d45b5abbb5013ac6450be8cde3f70153317bc4ba711a86db108. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ES21S2100112.