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 0xe52a87a5aac030a970d04effc42eb2ae2719b52191d64b9eac904fe317ff39fa. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5870ea2e-cb23-447b-8ef2-8bded78316f8.json and https://artists.proofprofile.net/proofs/artist/5870ea2e-cb23-447b-8ef2-8bded78316f8.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 0x70c0104d0ae6f76a3de37bbc1f0a8fbe7aa838deb2b4294e30238efb315ae4b9. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/USGWZ1610287.
Tell Me Again This Is Love - Ldr Remixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb975ab3548431f9f83c17ea58fb4c4b7352373daac85cd86c7cd4b25ca0d3c7e. 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/USGWZ1710104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d59db92b6ac1d36f2ef544fdced26a3a129ae4ffed54802512b2d05b57ba005. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/USGWZ1710097.
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 0xab5622cb7425cc66e8368391c9d9ac80b378e7e75de33c1dbcf5e79c4485cd60. 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/USGWZ1810014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x572af92cf42b59ceaceac23e548661fe63762e818b35cea0a95d12a5fa9081da. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/USGWZ1810015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b0ddc35b8d9585b0919a0e11b29b1ee6045b8062550d88fd7d459ee97a02972. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/USGWZ1810016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72bef088e294d13c81ca0b7fcb4bb7876faf7879efd185ee7cf15931ee4e7cfd. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/TCAGW2332460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6f52e2fe50e4e790819429f9e5cf0f499487eb87a78290331c44a2cdaca1363. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/TCAGW2332649.
Becoming Everything: Strega Beata Remixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa19e2fe777bb2ee21c7ef209eedbb641689436d1c09a3481c5df036ee2d89472. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TCAHR2333407.
Hallowed Is the Earth (Still Geist Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2febb1e03396cdca2f0613a71c941cc92f20c14b374ebd7f6db692636396c742. 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/TCAHR2333468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d73fc3096cb28de2dbc137fe5657ef98a5c5958569576f625b0e99266613381. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/TCAHR2333375.
Prayers of Consequence (Cry Velvet Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x092d5e5ff4117afc8bcb95ed18fb92883a70481d6e296d82325e59b7efb46c8b. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/TCAHR2333392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc464bb65234601d83929f7e0e238c84b5fed97c93ad84cdbb237111c2e978520. 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/TCAHR2333425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x637077acb10efcef94f08c07d2ca7fb4c7d92379ac82a9005e07651c917b46e8. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/TCAHR2333439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24b45e026235ecaea80e7e34d07d6b62816692963f893fb476f419094551a182. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/TCAHR2333454.
Prayers of Consequence (Bestial Mouths Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd156b83fb3d6192854a54458bda8253f0eec07da0b69a36577225154270f36e. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/TCAHR2333462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x565773de3f42318c8a2fe76a16f9277e558871ce41c30845f7107e2319560b8f. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/TCAIS2403252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cda881c940097f4fd62b85f1087b1d7122a48f746e7853a5f2685c296dfa5c4. 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/TCAJN2519870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x025d6640b919fcf79a2ee6a43af3a1f49677061449477cfa9ef20a56c4ba3e1c. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:55:30Z), 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/TCAIH2447977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x792857c2d675f9449be89e8fb9c8c51eb674ae2a8b2b6be00e6decbe050d43fa. 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/TCAJN2520706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe510718eed65adc1f924ec049b67ec6f35dd3f97cc7c6959bdeac136cf90c645. 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/TCAIK2467324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a971dec7c57c201ba3041a001b12d23763c6434077bc37722d40fb0ea0a0497. 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/TCAJN2525702.