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 0xe733c716ef3e5763f688172b0f7ffe3d8cc1622b59f6078dbaf860717c067be8. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d75e87ca-61f0-46e0-84ee-bbd1ac9f24ff.json and https://artists.proofprofile.net/proofs/artist/d75e87ca-61f0-46e0-84ee-bbd1ac9f24ff.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 0x45c5ee5eec0c1bb31fa545019a49df189162f78365b30ee902e73664441590d2. 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/BEIH91900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48e6330353fa687ba16d67e94c58fe7664d18e1ad1483def83c5b38b0ca90f59. 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/BEIH91900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ab555a12117dfe47e9167903ec612373f6058bf623e5c63d8e8d76fedc0cfeb. 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/BEIH91900014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd7c0a1a1ef3bd3f897cb7506c397212fd81605837c2ebd176d62134e304644. 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/BEIH91900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7c0e4f27bb0c7d28a098f24c1b3a4fbf898b25ddd469b2e0581166c4e08bff4. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:31:36Z), 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/BEIH91900011.
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 0xab2b52f70a8c80473d74e8dd473cc581eefaf4b410d0fef063b292adff0175c9. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/BEIH91900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07f3a275fc51ed9b6261ae8058005ad8fbf23284eb4a5564b37cf93d623e0849. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/BEIH91900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedd8ccfd4c94a1eeb162688ef6b52673899813336bd45b58e99a081cd1bbe1df. 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/BEIH91900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa53950f085e4255ad8b376f4b6f6ac1cf65f0f0a44426a50b3b9c4aaa81c64b3. 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/BEIH91900016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x198cdf41bccd31fe1f25ddf6905dec48ab9498db485a938a6bacc52c50975b4e. 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/BEIH91900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe31545908081d6c8bfe429e520708b89178cc192e626dfd8250f868c52d63b3. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/BEIH91900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d3300c37137f89948ebc063eb00019ed0b092cbf88c8cdf2a2096a2dc791772. 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/BEIH91900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3d8fbb49b91e0b4732fa76d892b70a67884fc201cab55c51630a4edb0a307f2. 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/BEIH91900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06a30218c1875df0dc90fceffe12996db10e895a0f28ec048ede75a271586e34. 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/BEIH91900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04792e40f89d55201d37f80387ca427e41520e149db27769904fedd9af67caa9. 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/BEIH91900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x894439bc1d2ef05a72606cb9b69c11f2f4040ed1dbd0eb00eda2ddb6e5f0e43b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BEIH91900035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf41398868736c4df232b92e9b85455ed142d644482fffb13b141ab894c1d4b55. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:46:04Z), 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/BEIH91900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf991b61b3b8d939fff8eed46d9b028aaf671e7c471b8fa125c01b916a8aa7b1f. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/BEIH91900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x047a56b00365da098cf084fe971e6ca97653896c9d8506369dce3f6b72bf4d4d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FR2X41453301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x260e2bdd540ff3a63544e11da0a15ec5e536cd11ca59505edf412479cf3579b4. 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/FR2X41453302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb8417729b0f9f6c35b443939cbf88f67cc350ac0ee08dd8ba550861f5e0080b. 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/FR2X41453303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44a5b34f1ce347b1af95199d94c6ce721060708f502641974a7fa4f0d3d98736. 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/FR2X41453304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cc7c11aab43dd21eb5d16369c1fad74380d063956d77ed2c0dccc15b121751f. 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/FR2X41453305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5db1f389f0bcdcd09522d5405cd615bf1184d5d5b2d45ea597ace61abbbebdd1. 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/FR2X41453306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e6e7f39196096194e75fa18dfa8d5a77e46ca77f617b9aa4039c559914f1db7. 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/FR2X41453307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61333a1e5c6d31c89cb14ad3dfd2444a7008ca85b25c905824c1f4589bb692c0. 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/FR2X41453308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b68cc14118f5ba99cd325febbf2c6be29eda601ecb5fac857fcc30b40e764e7. 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/FR2X41453309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3387c4b16bb4624921cd6872f56bcc81a1c804297bd4a63ecbb24485b65ef0de. 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/FR2X41453310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd80e528e7264328b4e3b011a93fb932c5548f2fa0757684e0d4c40c8b517f19b. 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/FR2X41453311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3c2dfa3244befb352c8f3f7e7f2b2affad108fd3d7bca94aa668553e4226455. 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/FR2X41453312.
Ecstasy and Danger - Alternative Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04751450d693a62949057409dbf4596943c9cf487ca7ec3a47915da45333c907. 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/FR2X41453313.