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 0xe67e2a719768ccbb7f78ae4c9dbbb797f8ec4a01f5abcb15f3f888c59524fb2c. 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/09366a91-7e4b-4495-b0dd-d2c9e8ef6878.json and https://artists.proofprofile.net/proofs/artist/09366a91-7e4b-4495-b0dd-d2c9e8ef6878.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 0xad0d700d2faea1c673ac5cd11b063acbab35f77a65036ba235a976437f35628d. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/ZAA011900198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9147a214b2edab42507f4b114259f9729999f59f279394929d388c8ee812d320. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/ZACJZ2000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe1b21a758040e5274db85cfda456ccbe1311c2fe98251c5ec925a9d38113b2d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ZACJZ2100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a2295a256fe95407e570c0363ef4df00f45af1fea2c49b253e21f2f445d8418. 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/ZACJZ2100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x046dbee58a6d8c587c073acf7a44f42dfc1082691580ad0614df717be6197b39. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/ZACJZ2100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc83b661bd33849782994e14702892cbbbc3935280caba5158d45015a99936d. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ZACJZ2100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf967ea16f2e9022a472c61f271809db77196fe9c280d9a6699e7fbd0620d779a. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/ZACJZ2100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ee07361d78e3e60648c503608beb0c34a4be79d4f29488fcb4842d6aaebcd53. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/ZACJZ2100005.
Spyskaart (Wolk Nege Remix) (feat. Liezel Pieters)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6678c0d9f1e23ca212906d6c71995a464d908bfaf43cb7fcb90e0089bc5db130. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/ZACJZ2100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31d16352d2d20654c81cff640e557891c38dd1ba7939fee6c07a363f67fdfabe. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/ZACJZ2200019.
Jan Medley/ Die Bosveldbul / Kan 'n man dan nie / Jan asseblief tog squeeze my / Is Jy Bang / Agter elke man
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe817a5c3fb1d44e1a0a69b33cd17cab5d991a6a6bba6d8e844240ee70f01f421. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/ZACJZ2200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1066bd11c2b4026e431e9d55766a15e20d4ebd87c0b325f5a1a50abfeab73bcd. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/ZACJZ2200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce79642f4ac7a913c2e2a293d0a76a3210c07704fadfe35857eb3b3fc6139a91. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/ZACJZ2300026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92482af335e96dde9130ce449e4e6617b0f7cc6b0464679101dd9709eb95a8fc. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/ZAA012300194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x834d2e964f9f514fca4cb9abca78da59546df6930fcf09168855895c07bdc767. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/ZACJZ2300027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c656c0800887b6ff96f9500b020969da29a7baac717dd71e2f6334beb2c8baf. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/ZACJZ2500039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a08a2f52f58f604ed900ca36b807393a9f196b7836442be0cc665380866628. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/ZACJZ2500038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d85d6214d7917d867f3989164ae80ac1f826836a83b12eb40b0f4579ff69a3. 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/ZAA012400366.
Texas Hold'em, Fast Cars And Boots Medley - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b672fa813e06c25baf8da48785ae876d3c978cb480d6aea1f1ed36aa0121bb4. 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/ZAA012400370.
Dankie Vir Die Ou Kalahari Medley - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc951e90e93bcc127e19659dd169a146e11569984de129514188e69747000d594. 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/ZAA012400371.
American Pies And Pretty Woman Medley - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb802c03eea5a58b496ca0e9786f540ef5897cd0adcb7267a5c46fc50367ef39e. 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/ZAA012400374.
Soen Soos Wat Jy Dans In Afrikaans Medley - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd5da22cfb6fbd98d16b82350ae6429b8ac395cb61c237c4abb5c41508872f2e. 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/ZAA012400376.