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 0xf8fba62a0efeb66f2b3d1ce29ccd472fd0b5e6dd00eba40da75f568c85c6bbfa. 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/6e8a07f2-d0b1-4b80-b208-719c649763f6.json and https://artists.proofprofile.net/proofs/artist/6e8a07f2-d0b1-4b80-b208-719c649763f6.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 0xd88cb59777b3871e6c2e437401ca3a7a8370c6a243cfdac0195df829474a7623. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/QZ8LD1907997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f826c99da33eea16ecdd8cadb3b070eb0b64e6d6ce576ebebabfde1ef77da9. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZFYZ1956686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb8f423be1f4e021beceb704288669cb2b903e33d96ae5f743a11c3fa95eec8d. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QZFYZ1956687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd338c5d00f49c1d1cbd6054cb1e1ab99d07409ff9547bf395c895498d667523. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZFZ22084981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8c9b477fd316bc8440fa967d36772a3c795e4430aae38cb38e2acd1f5fb01ed. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZFZ22085272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x342e3e081475fa5437e3267fa96a0c0670033e769e0e73266bcb957e740d1ec8. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/QZES52041307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b59ca169311b4227f2ec5acd0db7a37aa0a34203222f4fff50b8852de3faa9. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/QZES52041312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f2fc2632abf45bd4da0711274ce3265d8193bf5984deaaafca5a3fd23053a66. 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/QZES52041313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac10842a2e7655c31822a39f4beb3f40f10d9902db27304abda506f53b2910c2. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZNWZ2078058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45f02b61104b1dcce164cf679d2efc601a04cfffdf209ed68129e776fca3f4e7. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZNWZ2078060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x338b82be24164de5bf2a0cd39ee8cf4bc068f7515d10c94d35aeff1b023b10e6. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/QZHN62171520.
Taking Care of Business Is Our Business... And Business Is Good
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaed3e1687f38417165839495b0392758f61421e2150f42aa0e15fe4a3b135999. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZNWQ2114198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda8e9482651f0dcf9a8576307f2ea83aa49fb50f20e70570f9dd9794234b1ecc. 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/QZNWQ2114199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae1c9f1ab2b0c2dabc7dc4aa8fe40f568024164e8f22c54156c21fb9c1599939. 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/QZNWQ2114200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81991a5b42f5ef1a343befa09c0f46478e1f267cf65706ac8f2d823d92fee94a. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/QZNWQ2114201.
No, we don't want to do a charity comp on your stupid fucking label
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b36beb65439d266e9e22925888e71a1eacf7c67791e905d7a9efe14ba49fb4e. 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/QZNWQ2114202.
Piled III: The Threepile (Lipoma, Trocar split)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0831be70667cf4b54b5aae5deaf5ee091c5fab2b39d660d88062cd374556402. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZRP42233888.
The Big Stink w/ Mavizzle (Chopped & Screwed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8020ea919563a4f45eec19f0b26d8ebb05399da19add9f303f79fa3147b51861. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T16:12:29Z), 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/QZZ7W2427337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x784d8aab853a41db98693bf5adba5ec22351d7220cb43f023f1b82abfc0d92a9. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/QZZ7W2427339.