Specimen may refer to: Science and technology Sample (material), a limited quantity of something which is intended to be similar to and represent a larger amount Biological specimen or biospecimen,
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 0xdf7e48edc9df6d82ca102bb0900b332cc60d704909311eb3ce3af5b2a0fc43c8. 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/64281ea0-efc0-4d82-843a-ddaf6ca300ba.json and https://artists.proofprofile.net/proofs/artist/64281ea0-efc0-4d82-843a-ddaf6ca300ba.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 0xccd4e5c0dc4a9f618de0a56dbef9fa9f6f77add3fc3628a6cc6313ea73d24d3e. 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/US57M0748201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f41bb9b1d35a484fa0581090745d31166a92b21af420385e5efd8678333785. 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/US57M0748202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84960592570a804cc75b2295c029990afe0946dca8ee9e50d768f0e191a7fd4f. 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/US57M0748203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa859f9378330996fb8aa0c9a71073b8e327072813a793f28a20e8482d3c7cde2. 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/US57M0748204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd57b99fa1622bfb388748abf31fb0ec1e501ad3327e9f92bf78ec7b3506cc6b4. 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/US57M0748205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x743e0cd665b559428d7fa1dad3e40c7cca7c02accd6b0e4a01089c7fb0cb9150. 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/US57M0748206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x587ae6ca84a45d42ef0aa2ff5bb5b083c90939c1ace69d737dc2f08cdb7eec4f. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/US57M0748207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a8c319d8a152364b787b7ac5c9bf9ab9ec358c5631789fd1053c3c51f15beaa. 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/US57M0748208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0034320ba3addee78007696785a5b63662f79025eecf6aeb4a29a6cb9c9c61e. 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/US57M0748209.
Kiss Kiss Bang Bang - Specimen vs. Atomizer (feat. Jonny Slut & Fil OK)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86a8a59f78b028b3c5cb5093012643cc746313c72a36e70b1996a173a330cd35. Chain 2 (Bitcoin): anchored in block 960223 (2026-07-30T07:51:46Z), 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/US57M0748211.
Ticket To Oblivion (feat. Olli Wisdom & Space Tribe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c15e2100a8b94a5be21238cbdcdda3b3c340cfa3e6138fa8d27baa221e2e511. 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/US57M0748210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19ba272a83daf53d0b3a63095f87592f705e35633165cff69b9141c83db9f3a8. 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/GBCST2025401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe32eb7ea196475955358b495404d6181b9c68518c3e97fc08224e27dac8b97ff. 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/GBCST8325402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12038ce086ff4ce712f6175a4b84a8cf902a5cfd6b241e79e1571e58c2f98c87. 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/GBCST2025403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79d9e4cb4bf6b974d23056252397f98ab9ca25c7131d0ebd536b3607f1c914ae. 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/GBCST2025404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1d144414e33087d8380a1d5c8500157f18d13056b0614bd2b1ba5d233f49996. 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/GBCST2025405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecf272eb024857e837b2c5eddaa4495282957debf52b6b55c8fbd3734ae68cee. 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/GBCST9725406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c50bc5dbf6b23683f6b2273084d05aeba70162c323b1304c094900c53b2f7f1. 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/GBCST8325407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd341f0e54c338c07b4c443b55c6ddd520378f86a7b21f2e759e88a6015ee439. 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/GBCST9725408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bac22c64f22a9fae2813f8dbfa95a2ad503f0b30e64691fdda0c7e42cb8f7ca. 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/GBCST9725409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74db9733913e295fcd08f1f5199d5888ab9fad6875dcc625f1417dc3a7c38869. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBCST8325410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc64b27a29b9a01b63c0958f15dd5683d1a1f10a52a8d4ec0f3ec37c2f102afb7. 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/GBCST2025411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf051864fcd8e562d1cab2429d66e41ca1cc56197de4ed9bc8ec9030915049a2a. 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/GBCST2025412.
Wet Warm Clingfilm Red Velvet Crush - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d2a270211977e247c57196b53d25b3017f90745fef7dee3da1ff7223d80d559. 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/GBCST2025413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4492167ca4cf9fa9a1f936509d517258fa9fd6f5c2b1995bdba457ac03b919a. 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/USEWM1400001.
Brainburst - Abrasive and Persuasive Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe92eafff61440ebcfb9067c121e058c51fb44a7dda39d9a31207dc76600bedb1. 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/USEWM1400002.