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 0xaa12dc28ef32b18e3c8d2c9fb29ffda7d2b57620af3a6186f7707379a37dae59. Chain 2 (Bitcoin): anchored in block 954025 (2026-06-17T00:32:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/393c8a00-b608-4b37-8fd0-2cc3180b47ee.json and https://artists.proofprofile.net/proofs/artist/393c8a00-b608-4b37-8fd0-2cc3180b47ee.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 0xa940f775b56a568f6b5ef194b2beecfd4e4830b2a803a393401f2f36277c1ce2. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZPJ32303261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7af2551168ad0525558e8617e7aaaf3bfe04e691dc9855816e0c23ce3b47719e. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/QZPJ32303264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c97d2a0e895ad824c2935a94d02460c56517d7ec9392e73a2cc6b87594101df. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/QZPJ32358872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb983f681a17131d6fcfe7e498f2c4805b02459dd7f4e71d0ad01bf4d5a09fb7. 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/QZPJ32349735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x790d4b7db5e71f51a10f04f8672b0262213fe21e5eb1b1ee49d08f95055d6a53. 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/QZPJ32283266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ae76a72cb59800a42d4be8132d6435258754f2e2d1cadbde351d027fad183ea. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/CA5KR2499580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa06f525b3ad1732f32b42ed683b2ebe197c1465e52272fc478a689fc3f25f8c3. 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/CA5KR2499581.
drinking the cfc potion at 3am challenge (gone daria)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a3b0d5cbb426f3b66863db4555198da16efa5ff3ff2aad26813fb6118d74253. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/CA5KR2499582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04e481d793a61cf4366433db70f1256f730ca2a00c5a33ec88fc57f4073e9a2e. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/CA5KR2499583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7e8eaf47552fe114183e26911528485558c0aa9ac7b49093cdbcdd6eda45f75. 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/CA5KR2499584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b08f98e27ccbd88536869cc944964b787e91e10489cd8401b173da43737fa17. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/CA5KR2499585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4437f1dc12c1082ac506103b59483cdc0d527bfdd9c84e3fb967e4411f5c8882. 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/CA5KR2499586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f5994fb205484b211a2a349076f8faa7623d2b192c0f6c1e31f4cfc442afb95. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/CA5KR2499587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b1899a6eff5366ea84e77cbe670f507c8f9881abdc36ce7fddf61bd13e6fa08. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/CA5KR2499588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x234e8886cf0ee5fe7bef189ca84014ec110e594f7c5314e1ed2044b394f8b334. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/CA5KR2499589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x519d771558a68140aa21c11714be8b52b593a8849eb008726ba8944013c2b5ab. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/CA5KR2499590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x869bed4be4ec97e9a95ffb0613fa16ac1af278ae1a7f7f6b0e7f3b2acd5abc69. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/CA5KR2499591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c4b44d5a8364382f6e73bc4296ac0449eca147e8f037653d537712eba1acc76. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/CA5KR2499592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ceb7ba590d2a989f19cf8e5673039af416f48264b3ac7667f15b9a2169b871a. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/CA5KR2499593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2a7d6bc0b164618811ef8a3b30dc113b46f4e143f167b60fa2485e028a25bb0. 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/CA5KR2499596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be935092b685b944d6253d8246c83a9926ba1ec74a3469270beefa9a86ac630. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/CA5KR2499597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e401117d8988147b8753813cd242c2c1732d2a6f597a1442a65ef4a2210709. 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/CA5KR2499598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cac92baee4d11f3d70521195ce0908df8e791832e14cd3a9648f765c8d88f02. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/CA5KR2499599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b48c51c790f1d796c0b6a7b3e037d1e85fcc7c738662cb728d6c2009b50a79. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/CA5KR2499600.
Solitude, Love Promises And Purple Flowers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc272bf127f15ce943e5e77c335fc8f07d43c3b32cab3641442858ce0f256181b. 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/CA5KR2499601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd848518fd006d90aa9fb8311aab51536ac440a73e4e79a5ba6ca0a03495c317f. 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/CA5KR2499605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2fc326d170b9391c760d785d06cc46e881bfa49746a488904dee1b21acea2c1. 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/CA5KR2499608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e74336a04deec3454e751ecd8f8cb3618110ddf7bc67b84aa266b998e774533. 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/CA5KR2499609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59e9c4d5a471a50fc588fd2c8515cf1be221ec1772653bf32c3cd1ee0e6e987d. 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/CA5KR2512264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce5d54a8746e1be1b542ed8c239b22a5eea60392dabea69bc3ea8d2de6207e2d. 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/CA5KR2512265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x611395868bddcd055875e9de8fb0f761df23f9fec158a8a60c3306515731aa54. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/CA5KR2512266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcebd94bdb05f1eacf679d78f1c9c3077ec278b7a5d849081d30f4a676a75932. 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/CA5KR2512267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb461956f0e778c31c2cf1aaf02de314de6aeb10ac6d46c61c6c194f0fdc2208e. 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/CA5KR2512268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e87eb2d5ee98ba6548b29687bc8d3de7e3046344c1b583e8e08854bbfc3c41. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/CA5KR2512270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5741a52e2b8e6b75164f47fc213d9c1e86f767122bd5794b9b6f4884ce303cf4. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/CA5KR2512272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec23466aeb5e8477123764f44fd490a8b498f84ca1126c7994fe528f79544dd. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/CA5KR2512276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x733d00c85c39e28f0693ec64567714c5b4c11571984e6a148cec615995ab4799. 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/CA5KR2512279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x782537c37bfc0c22ac5e1dd23e9249536bbb1b4686a08b0112f4f29eb5c805ae. 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/CA5KR2512280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa021428752b0be422c941a15bcb7e7d31a7e3774d7818f650414a382a9aa1b25. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/CA5KR2512281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60e2fea3561fb9b138cd52aa54661cb8922f6d61798b097606e0622456db4209. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/CA5KR2512284.