thumb|right|Collected garbage at Attero, Wijster, the Netherlands thumb|right|Litter dumped in a wetland area in the United States, among water lilies and marsh plants Garbage, trash (American Englis
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 0x6bb8f54d5e19594678c35b8717fab466c03fb6c79d3f9094ae60d433637ed4f7. 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/e537ce9d-b0e3-424f-8514-3849b7bf8305.json and https://artists.proofprofile.net/proofs/artist/e537ce9d-b0e3-424f-8514-3849b7bf8305.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 0x31bb1c1fd413692665d08484b4f2e399ef5ec25cc49f714bd904c3a878bd5cae. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QMB2P1800021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe478168589286d4d64e040eefec0b231643450e3e84442b97dbb1dda28f297bf. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/QMB2P1800024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bd969fc8dc8ec7505aaf4ef7961d2e1c27b6bf9498e5106c68b2029c952c0bd. 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/QMB2P1800025.
I Think I'm Crystalized (The Crystal Method Extended Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82d1d2b4f318d6370ebf17b07aca1ec315059dc0712815a96ba8a190b902d50a. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/QMB2P1800023.
I Think I'm Crystalized (The Crystal Method Dub)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c54a7d426ba9bfe5bc3d30138dfe1f4aa68a7042b286eb7111b30e859711f8. 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/QMB2P1800026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f9bd37829cfdccd108eb19fdbe483c713ebe2b039ff2615a33782a0695d4d61. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/QMB2P1800027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9f4812ff026aac3f729cdde2f37f6a4347610f26a3e26d187fb669a11520e1e. 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/QMB2P1800028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f5855e3bd7b45a3e6c162f15ac07a3092869495f02648ec8be5dd151fd63f5b. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/QMB2P1800029.
When I Grow Up (Danny Tenaglia Golden Shower Dub Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99e3c704be79ed7509920c29beb0c6ae440ed9ff62031216780ff598f6e24070. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/QMB2P1800030.
When I Grow Up (Danny Tenaglia Club Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34716cd73ed7531455e3f3aee6550af63f8847d9b9136907bdde8d6bd5c121ed. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/QMB2P1800031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x375379faee8cf0ee813ae61dd1ab17137821333216e199f266458b7119e757b7. 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/QMB2P1800034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23280514e1f4e121236a1c7fafb264db42f84d823e26601ed304e3ec55ab40de. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/QMB2P1800032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadfdb54351a277e5c9cf472eae8cb2c34e6360a0cd9b335a9837c34a3da863b0. 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/QMB2P1800033.
You Look so Fine (Eric Kupper Deep Drama Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc8af57433533a79565dfe1bf4c844130408a5d93d5b36fb2e44530f960340c0. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QMB2P1800022.
You Look so Fine (Eric Kupper Deep Drama Dub Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21d3855227582fb10dd4e0fa4a3a8eb02afe3db72c528be784096b83ce95f6ad. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QMB2P1800035.
You Look so Fine (Fun Lovin' Criminals Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x455a003072528b5a52d8082ffb769d1c326ec4041a8e9305f7af1a93d6bfc913. 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/QMB2P1800020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02f96aa4b8f0d3ea39d81be31b3111cb2518fec534ecae9c26c685229fb7807d. 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/GBCRL1300004.
Yellowjackets Season 2 (Music From The Original Series)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb092b3efbaad857fb07c74f52d7e7e2b01b4c40db11f8ec6a044a6406af094f6. 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/USIR10500046.
The Faculty (Music From The Dimension Motion Picture)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32257cebf46b00b36416d93b6d5f5482021d93340ab18b3d9bcc62d7ae12c98e. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USAL19800025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3276c7ae9909b991d711052123a831dcb6c299dee30c97bc1a08885a9695fb7. 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/GB5KW2305103.