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 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 0xdf01e8b7a4caafd968f1b1a98f0566e8f2460ce016d636b81b599137cc146527. 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/f3d64319-8d67-4b12-bc8e-b73f4b7df2fa.json and https://artists.proofprofile.net/proofs/artist/f3d64319-8d67-4b12-bc8e-b73f4b7df2fa.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 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 0x4fff3dfa252133e3632e7e29d18de12a7d6fc686f2b03eba10d34d7fa5c98219. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T01:23:26Z), 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/TCADE1736550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fff3dfa252133e3632e7e29d18de12a7d6fc686f2b03eba10d34d7fa5c98219. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/TCADE1736550.
Turn Me on (Remix) [feat. Mumzy Stranger & Raxstar]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x307baf894e7c452452e357777abea20f1160b224e10e12ff26ad49e295fa153c. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/TCADS1890373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x307baf894e7c452452e357777abea20f1160b224e10e12ff26ad49e295fa153c. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/TCADS1890373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x187499760f5e0540b57dfe246b004dc3181d5301ccb85447efa75ecc6e42e18a. 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/TCADX1808753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d282087d27b352345cdab579ff3ce39e599b1095cb26d3770cd91dfc5b67069. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/TCAEA1815514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b2f6d24f3d4995bd6702112c0db8bb77d9c38cd8e60e7256f2fd6647b426bf5. Chain 2 (Bitcoin): anchored in block 958496 (2026-07-18T04:43:53Z), 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/TCADM1835936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x647e57129fa2e30c3a3af4f32afda4e6854936469f452e1b513d8a1d01b1be90. 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/TCAEH1988219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75f8d1f58fac2f3a17e6bae127b012d36652fded6f8969098e875d512f0d9698. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/TCAEO1965428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x265dd3d7363a27304b740cb5f61a28493c1dcb251387fa7338ab9416088f45c8. 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/TCAFC2045317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fda307a35c54af3abc5c04d59219601f6711ac4f5eb0f397cfcf6cdcc679725. 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/TCAFC2045325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4b64e09c3decd7a77ec292a96ba2918c8313b407b1304ae247b026c09ceedc1. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/TCAFL2181255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d4c09ffc0866470ec1fb2f0475f492bbec4f662655ee40707234600f2201e54. 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/TCAFY2132600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa10df0eae83d421662c5c784805ed778dbdfea9926e65a5af38fc49776ae3f3d. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/QZFZ32227345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bb7c60e62e548ed5477da474a113a56af502b858d1633f86f360d2b74c0fd11. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/TCAGD2283854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08c1c5a57b6a945d53c37189bdc9c04420f42ebedd87194efccf2503a08edb0e. 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/TCAGI2277680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf99140f770d05d50060d8095665b665f0df206d37545cd98371652d08c732ebf. 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/QZDFP2051470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x588e161a656b0e1345a8d3918c067ed41a8e8c721b3bbb856c3733c3afe1078c. 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/TCAGW2311344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe33137d6ff7171fd8c05a80efe44e370ddba91819e074a81b872eaa83b22e513. 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/TCAHR2349548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2addecd0b5af23024e976e4f4f7c5ec78cb9321873cc7098d85b58a647e7bb92. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/GXD7G2456801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dcc254aabcdadfb8a2d741911a2b58b0754cc00f71e1c1f01b37b34a1a4c741. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:31:53Z), 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/TCAIK2454926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfffa0d1c536dd790406ccba00ad62ded3294d115def99d7bd40c07563eb401b. 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/FR2X42497338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d471b987e9876b29cd102908756bb95c5df9e8b984b2d15ce2deac0d27bf1dc. 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/QM4TW2244521.