Cell most often refers to: Cell (biology), the functional basic unit of life Cellphone, a phone connected to a cellular network Clandestine cell, a penetration-resistant form of a secret or outlawe
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 0x000c6648c3d8d25067cb45f14e9220d108d4cbd5eb8d0c946dfe1b3ba8dec2e9. 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/4407bd80-4705-459f-9c74-5c20558b4751.json and https://artists.proofprofile.net/proofs/artist/4407bd80-4705-459f-9c74-5c20558b4751.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 0x8698308c845025b45df04820c95f7d68774e7faea5991521be17e2457beac04e. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/TCAFN2145851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ae757ee5bb9b3e593b75fafd88b590c790cce73032fc23e73401b2f4032ea6. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCAFN2145853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dd4daf4b5a1b5c5296e83c47512eb6a0a98c0707c6c26270954a6e33d6e2bee. 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/TCAFN2145854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51ac20ca37af9018d3c5dcd02a6f2190960fc23f49eb100287ccde40630766c5. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/TCAFN2145855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd07068694262799c12486f27acd6e3a7b9ea2213882445dfff759b38aab6d189. Chain 2 (Bitcoin): anchored in block 957695 (2026-07-12T11:16:12Z), 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/TCAGD2218311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x327f2b35e9ef2a5f82b6537446bf3fdf597aba342cacb68309916febf1a0049d. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCAGF2259796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c73fe4f43305db01644f72a496feb089047f609b82756e61ac824fdb729a5ba. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/US3X59903500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e0422a48fdfe9593ef655e05bdb68fef8d752dafd36d5aa327cc203752aac4e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/US3X59903503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5d781b6718d4a5c2f48c02dd74c29bda540c9fed3769e45d3b00a3e2ed4e45f. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/US3X59903501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e0422a48fdfe9593ef655e05bdb68fef8d752dafd36d5aa327cc203752aac4e. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/US3X59903503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0ddf24c2ac564b7c9b7bedb6e68c18aebffd4a8183536ef3c7d0adff8f7853d. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/US3X59903504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb0bda877043422b8d2156c4d89baad93a76ed731a6753fbaf098077f104abae. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/US3X59903505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35645dbb69b385bf3c4d2fa787ef43d6edbdf64d43fb32b090ba154d3ea67829. 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/US3X59903506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3324dafe71af9937c0e736b68eb0aca51d2d6417d103e292a1283d25200b13ca. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/US3X59903507.
Slampilation Mixtape (Compilation Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6e9da7d882a84d11ef8e36d7f83d33c1c263f4e9230fe4437bef9d9ea32bc67. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZW9K2259648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8c74b788413aac4b27fbe1d9340f012ebc53de37e7644fad612636e99803797. 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/QZ9AL1706641.