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 0xa621f3a746c8054d85e80e07404a52b53b2d7b02cf6ad9d8afaee0a575d91fde. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9caa2ffe-aa28-4a0c-b2eb-167a56e799a6.json and https://artists.proofprofile.net/proofs/artist/9caa2ffe-aa28-4a0c-b2eb-167a56e799a6.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 0xe56122bf311f38538ac0a96f563cec8c24ea62880437063d65ec451c4ba598b5. 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/QZ2J21507972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44af0d0de9fee00d76788ceb98bf0a4c3d1bf029a296ad45ac6cec2c759fe45. 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/USCG60410305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57ca36d0780b6fbf15abf9e58cde265cf22be0bb3193909a4a4ca6a0019292da. 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/USCG60410306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c9c87aaa560af9d5c8e159d9f85713d899a351f627760fda5b7e72d71624d2f. 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/USCG60410307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90e1d8c1d21ca33768c2cb2f6c683ba5fd215123a26e87e1329eccc0903cae32. 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/USCG60410308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd243fde6aa645b6560838c31b14910dc3c633e21c5024c8fcbf0858e33fae087. 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/USCG60410309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd48318f770c5318c5a9983463469c86c54114a120b5e1cc592b9d77d9c1ffc9. 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/USCG60410310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1d25b0036c6cac8f380543c5e02aabaf8ddf0808c2f8ad8993c876914cf7645. 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/USCG60410311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd50af5c630fff5d699a13f52be4b7327d91b42239f80a0acdfcdfbb925bba37. 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/USCG60410312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91c1a0525acc42f978cdf54d391da4d1a45723d84fa80626e0c925803ef22474. 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/USCG60410313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x958537a515fbcb22d3fa1f9cce7819fde3241f1c18ca07bf16793cdedb9ea746. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USCG60410314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc8a1af054a8a13f2195d90792ef7d9228623076f34d49ccfa9fabc3c9e85bd9. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZ2J21507971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x115fae40f233e22aa2a6d0ec0cd7ba7c9afebc73ffe9499583f9b83ae70ff2ff. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USCG60410246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e812d6cc82283dbc50b0b2a626b5760683e478827b7253e6d412af4c22274ef. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/USCG60410248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80dac3ed6cbcd2a33d9358852df6b262c22e75a4259388ed364c64a940b5928d. 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/USCG60410249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc91de55ac89fc22302827126fe00abf07ee9cf2be917b08e230f6747b9f7fc5d. 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/USCG60410251.
Santiago 2:14-17 – Fe Sin Obras Es Fe Muerta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf21e0ffd73c99c311c92b2f64cc60697b32b6a8445f8689cd80dbc941225a2fd. 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/USCG60410252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f1ff6df36d2eb3e1184bd57d3ed9c3036bcc23bec2c56211774e1fa3aa05304. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/USCG60410247.
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 0xa295b39db70494667f413019b5be18da24399e3ffd0978871fe175afe286c0d1. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USCG60410250.
Proverbios 3:1-8 – Confía Con Todo Tu Ser En El
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61da1e944b1c41f119427c440c336033e767c211ab4412a470691b2b5f2f03f4. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USCG60410253.