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 0x3d20df96aa1a6eb456d58652ad8cc36b46e4925899b1072e58d9ed8864eab8eb. 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/62bb2a8b-f212-481a-aec1-ea6563d39fa6.json and https://artists.proofprofile.net/proofs/artist/62bb2a8b-f212-481a-aec1-ea6563d39fa6.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 0x354d0f76619722b8670fb5c3c3c3060294654df9999294f5357b0fb4b016faa9. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/QZK6L2118438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b065a4c051fd664c64c054cedf6e2ccd13faa6b7d9969e40888a5c13629f4f1. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T10:12:17Z), 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/QZK6K2129096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe32f04af64caeb6d74903ded7f5078852efc7f316c4ce5c0b69749220e3f2304. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/QZNWQ2108584.
Before I Became the Reaper, I Was Tempted by Death
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc88a444f8ca03f11518861fd234c849d7a378474b2c40ec125c2430db59edef. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZFZ42285631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dbbf4ed16fdcfd13ab443fdacf644fd0b165e3ecdfa93173a8bf95560bd40d6. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/QZHN52285011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3d200d82b708f4e9c4aead6a6c7aa813a56ef3361c6580eea29451ec4b0dc4e. 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/QZK6M2267208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x201a69123101a1cffbcd968997336505bccbf7546820d2fbb1f611f30d7cdd90. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZK6L2296477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e38030a0b819ca279ee142e69d8f080071867c5b96ac4ace5990b1289ce82e8. 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/QZK6H2263499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c9071a663761dd70b128b8002b680eea2aab753438071fad0a6352f04ddf357. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZHN82251895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5682af55f125db73348821be6501632be1c38c7fcafc72d7577d5f61374fba82. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZTAY2293367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6939759e719b5d530e5af5c9829b65529e95fdab10d6770773e16ab22c29c82c. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/UKZGC2301561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6033a0dbe231a857b5c4c6ec84b2a6e7a60c9a998d14ba6bac3b348e3289ecfd. 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/QZTB82318933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43fe300d836225337e6612d2b3ef4e2e22ef14710c80f2c2ac06f774b082d898. 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/QZTAW2389476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3e9d498aae99e94597e15ea19ffd50deac7a53666fe38bc0935de42b636639b. 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/SE62M2377769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x757e7b8b12523aba4d2a37ad5926da19912ee63155c2336ef97420077abfbd6e. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/QZK6Q2347531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebabf0554fd619dd36ff29ec5665a561ca4c7c8fecf16b971f5e35c4fc0b6451. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZDA82346980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35711dcc3d66277707ef744fac1a5b1c6408c17b7e4ccf2a378b03d118fa91a2. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/SE6XX2309672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e06b452678a5590675bd0bfa6244fb890a2adf98bd7796fe6b3630c1780c483. 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/QZTBF2371679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb05d7e398af7b4ac7d9c93b94996ef6734aac61570814c75245c27e1e814bf7. 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/QZMEQ2251137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ae431cfa69557706bcc8044bd1589629843c74d017139cebc358782da91a0b6. 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/QZTRX2133076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea1de3a43cf88c4a2c32b50f676a114a4c2d087032473d612c2c8af74cba1a0. 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/QZTBA2340415.
A Compilation Of Sounds & Words Written When I Felt Like Dying
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a037250363b21e436682980747b16df36b9212d29b9f866f011a84a376b2320. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QM4TX2386396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a037250363b21e436682980747b16df36b9212d29b9f866f011a84a376b2320. 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/QM4TX2386396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1dc58d412d9c880273701f35f9915f9f1695bbbfbd698407d99bfefe40323de. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/QZDA72208463.