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 0x8c72ba92bf90ca258b83381ceb9c9a45828fe8bf2b67a3f6aebad2f934ef87f1. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2c8611ca-7192-4413-82cd-56de35161e5f.json and https://artists.proofprofile.net/proofs/artist/2c8611ca-7192-4413-82cd-56de35161e5f.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 0x5effa3581da3d71909193683dda8b63d04b7a617c2930c8b481ff4c4aba53c7d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEU671001429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18c08a6f59af3557a661edb7aefd445e21a3a19cd320a5f02cf35ab898ddb6e4. 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/USTDG0900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc86d1c28147a7daf7f35136b2b850d6796080f165ccd39a5cc539bc4a01ce4f. 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/DEU671001434.
Bar 25 Compilation: Kaleidoskop, Vol. 3 (Compiled By False Image)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ec6f289aca282866d926f5bb18a55ff65dd5481f74f6cbd2ed11a7cf90d333a. 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/DEBW21300133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcadfa1b60419d1b49f61085e6002fd30a143587d417fcc89933635ae861eca9d. 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/DEBW21300134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1313922b1978fbfcb81d9cec3013346f7c1d428014184de91c476974f68257c0. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEBW21200244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78656f476451dcf60eaffada2a3690c69d3a190327449181227648fc7033943d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DECY51285013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13b8453549f70f3791b8932a182cc4f91de68f2af9160b1f60a1e29ba5be8d57. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/DECY51285012.
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 0xf83e0c4d9c512393e94f4dffe73d4276aac7ba885244f2299227e8049adfdfac. 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/DECY51285011.
Another Insane Sky Tonight (Freund der Familie Dub Reshape)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1304accae304e75928ad1481e3cfed70865af0bc2e3182e4882fa7c5f79c47e. 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/DECY51185051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bd6e8488ea5c34afa256ad42ea9664a1594675d5f53f6bccaa4143b4d053849. 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/DECY51185052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4309258d3709a7d22c3bcdca64667218ac95027a724ed7ab2ae745aa5c53546. 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/DECY50985041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49e52bc989835c25379f4513fe3ca9da388e2fd0e9460309db1b140258aac93f. 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/DEDU61480005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa99c309ba0ba8bd8291c34b5c5d2f049874e4ada7af77790a289b99209b226f0. 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/DEDU61480014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd683d60dbd29f2425812a381d436471e0ae95eacddfa1a44f1c5b54b2091c58. 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/DEZ651371875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4934db63250ab863823046b9adb95572f64d3f6997489c6baa52348456ee44a. 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/DETB32401601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7368f2d03e4710f46d24f7de036b0b358fb198b511dc010b5652e63167436d2f. 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/DETB32401602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9087fe2b305c2daabc2ca97c5b43c8f9c90807121f8bfbdde6064154f9830c69. 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/DETB32401603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2ecf9e010308714a6857b196f9a815e7cea26481c299ba89f716f82fd1746a5. 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/DETB32401604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c47817476e4312f574c84a64716104183c12809a797cf06f67a9fad9c140add. 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/DETB32401605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69fc4f0cbaf531dd7925471850f87e4ae5118363bf67aa9c19ffbb13cba82fc5. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DETB32401606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77eeb432be3b9ee9231c5ea72491597d9060e9bcf4ed789c0817a23342ed2c81. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZWFF2448019.
N01 - Freund Der Familie Remix FDF Reshape
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x522468bb0e2b7ebe6acfa7fb768b46c292fef52e6ec6d01420bfa20bdd87ceb2. 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/QZNWR2580690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9516f40796050bae025c6108cbc249f4fdb6f49280bb92fc18f97094c5f232b2. 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/QZNWR2580691.
Phase Space - Freund Der Familie Remix FDF Rewire Fix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2667f71748a489264b65a6a27e1782a970c187e6c5b3c730afecf74c2f6dc3ae. 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/QZNWR2580692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37ba4ed9b273a623275b6ce23c91e57735dcbb770a4aec39844a66b67f81c13d. 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/QZNWR2580693.