1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xb77c60b17a70a668b4d72a9df4e6391d8daf392a028cc4aeedebed98bb7a9ef7. 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/bc9d7d18-4e50-4139-927b-1d773956dcbc.json and https://artists.proofprofile.net/proofs/artist/bc9d7d18-4e50-4139-927b-1d773956dcbc.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 → block OTSBitcoinBlock must exist at that height 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 0x08442c604307c337b6d9bc81256d982dee6086c39ce98b4923fc4b3b5c041992. 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/TCADA1773141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacec0331b5ad752fa838efe9da5f4df46e251ee3a70c1739f01d6a2fa7e2345a. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/TCADA1773142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4b3483e2e02799c2d8eac8360808991d9e38f4e14ebeae886b189d7761b1e54. 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/TCADA1773144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe14e0519b810609b2387617dcf2c89f7daa7fbdd93f7b1feab8cc8a50957d5a6. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/TCADA1773147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c8f342096bc734876a8bb00332ce9af76d0acf919fcd64b68825656ffa1b701. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QM4DW1801323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ef7c2a33d8500a4338419709b8355f6be5eaeb541b77bd291687b775a6ffea5. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-17T04:15:51Z), 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/AULLX1900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x534065042c0b60093a7593491d1e54c092c5e7b29915ddc97797d252901b57af. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/US5262124523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x859156d202c959dd6d2d7a1dd587ab43f1d321be45a732aaad3758c96098df3a. 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/US5262224563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3e0ddeb68eb424caf1f3765945660109218ae2be036d37cb51ccc0681f0baf8. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/US5262224565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9a7f07bebddc16b9bd8e98536739650f05765263792c54d891c015dcde08040. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/US5262224567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x200cbd2e2b27a662e2701b14165b0ada3dafa05fbaea4feaa5890c2b0517a351. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/US5262224570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ed8f529401cc42063aa740d816322aa85bd7ba59af03f8fef49eb0a96a9b3b6. 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/US5262224572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ee9cf6310c1963782743210e47914fdfb5581f6ab5b0e2ab2193a354529523. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T20:05:44Z), 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/US5262225002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9911b5b826175f335c1345263e36fa4473035b3afbb148b6528770f3f888f24b. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/US5262426375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6c94db29d9d2621da37b4f4e4cecd09dc9cef3e76742e0d4c421698d3a2dfe2. 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/US5262426373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b1f2e41660f623b84c8bae4082db528c7313b39d1cb117507cf7612c822d241. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/US5262426376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea4c7a82ea2fbee05aea17d00befd6f0a0de5197e6b75757a42ca9f1d295a2cc. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:27:59Z), 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/US5262426377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e9252c52b9f17bcf39e33c65c0e572b6cac0845115cfed6e2649c6acff5839a. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/US5262426379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac543369b12d00de08606571efbe5ef584675beae8110f5311c871786ad79eb9. 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/US5262426382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe01b0d8e39164f5d92c144ac110958f71a4192cab2d26212a18fe5a823a3d970. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/US5262427114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe01b0d8e39164f5d92c144ac110958f71a4192cab2d26212a18fe5a823a3d970. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/US5262427114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9705b20f8608434fee92586df7ea44ca508792bae8feab9cf8f60b5cd93fd53f. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/US5262426372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9911b5b826175f335c1345263e36fa4473035b3afbb148b6528770f3f888f24b. 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/US5262426375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b1f2e41660f623b84c8bae4082db528c7313b39d1cb117507cf7612c822d241. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/US5262426376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29ac9da5884e44aec99f10079512b7459341d292fc0a46c0400ea91daf4efebc. 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/US5262426378.