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 0xdcb24cf91ac76b5b0c94239412ee4f743edd9d6b0fcb09dfcb2db4d304c44f7f. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8856312b-2c1b-4a2b-9b24-2dfe876f01db.json and https://artists.proofprofile.net/proofs/artist/8856312b-2c1b-4a2b-9b24-2dfe876f01db.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 0xf096690b1edb2678724936b951b8f72a1c031f557d117afad1dfbb570efe805e. 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/USDBY0904836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e6b92e9e5c9bed5a9d917906eeabfe55167920a9139ab8284eae0213fadf68e. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/USDBY0904837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb90e3edd2a25aed4b5ec000f429feb181ac31d7f4d64603959d24c2b83e5454c. 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/USDBY0904838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bcac604ebbb949f39b96ba2658d5081bd989e562140197c2f27ca61f01df4ba. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/USDBY0904842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe12a3362f1613ff18b111e377ce2307d0229fb61d54add9e14d16b777efa7132. 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/USDBY0904845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d037ed4469d6da576db48f09c5228188d6ebc8bc2afa6256e063209be11ee9e. 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/USDBY0904847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf0fe0d54f6b09c793efd50dd45e4a9abae66fd831c449522353ddc42107c312. 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/USDBY0904851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9ff0c1c1df7074ea74d949eb4d71ed89132b7aa4aa835ee23ffdfe9c4c27170. 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/USDBY0904852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfafde4b15327fb81f3de34e5f9f5af06f041a0208eee5f6b235bbd6b6c0068ed. 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/USDBY0904859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aecd04b9c433e485cb931ae96b61a049a4b36a7967c2d0998391a0888705188. 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/QZ4JJ1773790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x971fc8febb0542759ee90fa2026e336ca8c04908ce5e435168908c1607faf6da. 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/QZ4JJ1773791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x636fbb19f81cfb082663c3d10d0f698c111fa7f40c5220c7c667772688bc52f3. 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/QZ4JJ1773792.
Do They Make Tin Foil Beer Helmets? Cuz I Want One!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28bc87f509a5451fb8ff271acc2f6a1428d368bb3c45b3c17402d69a6544d88c. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QZ4JJ1773793.
I Spent My Spring Break in Vancouver B.C. And All I Got Was This Dumb Song
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70a3a804d4c44f570f8053016684a834d5427a7532e733d31c1e824db452f7ca. 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/QZ4JJ1773794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x990d211a3bb04f448df3edf54765c7d735b9335db17f79ff33c3eecd26672b7d. 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/QZ4JJ1773795.
Talkin About Eating Pussy and Drinking a Bucket Full of Cum in a Town Full of Pig Pens
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b18cf5444eaad07ffbb84746b62d028c615ff3f4a103a4a93019f3bf9720b81. 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/QZ4JJ1773796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x029154a67e4458c6914e5a8dbc23f1f8278b2e410cf392f9217dcda9ff705ed0. 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/QZ4JJ1773797.
Yet Another Obligatory Perty Like Tiltwheel Song Except This Time It's Like Magic Poetry
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf36f752774d29a1dd33007bbf7995e3d90a9c694a245498d996b633ab2ecd1e7. 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/QZ4JJ1773799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa928955d266e186d890aa560de473b4063004bac1e082741efff45464eeacbb0. 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/QZ4JJ1770449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafef7fe7449e4d2d72dcc4fb31ed273cca2995a364291e071166a25004ee8717. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/QZ4JJ1770450.
Song That Used to Be Called Aaron's Song
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55ec31ef2d55fca17c825f7b8f78ab69b72a8a8c3901f4e11d112f7dc4a11f94. 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/QZ4JJ1770451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c68eae8705c2d50f2b0347078a620c9874f433a1b85bd3440c2767cdaeeb7ea. 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/QZ4JJ1770452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2210f2965a789dbcc4812d678e664d06559955d40e988d359ccf1c16e60d662. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/QZ4JJ1770453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ad12cd0af15a0fe9779a4a7052a676b317dbf473bded396c8cbc6f5a0c19cf8. 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/QZ4JJ1770454.
Battle Hymns for the Recluse Youth Pt. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33c5b86b5d6ab2d3ef16a81141d1a804b8cd56f882c2887fc51e4e42fa3191ee. 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/QZ4JJ1770456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bf4023a205c3a76e89eebc298aaee6ed3cb5ee8e7c64fe0ec9b7a52b16eb801. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/QZ4JJ1770457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x350e562ee898a25a7607df2249c9bc48443d8736c20634bfd70b6ea354209aff. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/QZ4JJ1770458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe563ef57b4cffc80114ae7530970181354ac41d6ec7b2f03ad3819e2f854ad1c. 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/QZ4JJ1757238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6233e52644d728c8002ee55530e3562d2a344e81f2aca4d8db7a0b59538cb00a. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QZ4JJ1757240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db5344eacd52c0f18730c9b57188543d1ef810f14b5fa2d461ce28a35f239b7. 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/QZ4JJ1757241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97d2cccd9e8466e4dfec93c6c5fcdbfabb785d7f3661274f9db9b0a0f30459c7. 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/QZ4JJ1757243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5568967d356a2c2dac1f141257f48e34be8eaf8c3d056b951e6554bc2b2b7a2. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/QZ4JJ1757244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17f666509a3ad2aaf4142d9540861abf78b6ac89396bcd668d05fa907e9159c7. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/QZ4JJ1757246.
Know? (Complete Gar's Box Recordings 1994)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b99496bcf886a3b4e2e7334802ef4a770a37108d2b01669a801f9d0ac1ad30. 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/QM4DW1791463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578c0e57de6d752412004e4028524a6ce113f64ad2a6768c387ebad59f3e9825. 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/USL4Q0797589.