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 0xeedb663e35f1e17320bbe2a73a0085dfa4f5f3450695c98f1479463ce05030e7. 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/6360ff3a-7c26-42c2-b9dc-84e06e635174.json and https://artists.proofprofile.net/proofs/artist/6360ff3a-7c26-42c2-b9dc-84e06e635174.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 0xf2ea5dac239949158775a7757d81a5367ca4445829d7e3479ff11a71d81c4902. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZNWU2372594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47f7d8c9f8c0f6b003b57b75bd32507d5a49ae492835d1db0d3aa0d24ea37928. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZTAZ2331249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a6b15e7178190f1516ee075ed260916e0bf762d2e8f12818322ee0c4645ca92. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/QZWFK2364982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf54282e77a3d75a366f047214306e6f83b0ce9a350cbe3caf26a777b728b33ca. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QZNWU2452745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbbeec18461c455f48a48453784355a958d5c1fd33cfbac8c6a37e5ee0b7767a. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QZTAW2453614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13a2291bf8a097648c523a181722d2796352dcb0a3427d084a2516776be6ace8. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZWFK2405089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83166f4896b2acdc99db404fa669a2013d16dce5efd8274bd03d81db5fadb579. 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/QZES92579544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd46873b07b3b67afbff8129bc7308921aff0dca30b7224ffc6d89f03c0ddd8d0. 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/QZES92579545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba7829f53061104fee9d1fb3cdfc573026a0297a0b5faa6eef5cb43a69f5bc00. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T03:56:39Z), 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/QZES92579546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9f0b9cefa4da6d7b712917d9a6a6ff87715a79ccc70a3c21a73eb75b7e02ff0. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/QZK6N2542988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cf98d4d5036641488c412d696f478cb2e8bf0395a05c3658df4ab7cf5eb6055. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/QZK6H2554615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b111c5157ce14af95a453c5aaf1549c0ca92cf5248678f6b3142ab95804b96d. 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/QZK6H2554612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ca4a3e3cc11225dc23cc78eb8b36e581bb3c83b033d0d918c271c738319d9a2. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZK6H2554613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cf98d4d5036641488c412d696f478cb2e8bf0395a05c3658df4ab7cf5eb6055. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/QZK6H2554615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc42810a0850e2cb938a29272b94cbed32e86b2030ff01ecca08bc817515738a1. 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/QZNWR2524116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9fdbd5c7d8ccd85366f02bf998c697a8f41c386019a560ae5a6b6e78eb3d1a8. Chain 2 (Bitcoin): anchored in block 957778 (2026-07-13T00:08:48Z), 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/QZTAY2572187.
you may be offline, but i'll still be here
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x533adcf39fd3d4542d33729ba501d04e35f70caee630f99020cba5d54e63df34. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZWFE2533502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44899b6a4dd54f7e008c95414ced023d1225b9addb9549d868bcc280313e5759. 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/QZWFE2533503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc004910fd9467640619aa7011cddd3ae28c704ce96dca8c946947e51277afaad. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZWFE2533504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67c95f81eb81565b20126e6492b1c07bf2bc0c40f9f55d6f0f0eae58f269a5d1. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QT3F72551934.