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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf20675cbc2862c1f0f1d7c0cd7e68cdf2f478d4264d393c9994c2ded80b585e. 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/83965e0d-ca93-4817-9b43-86b7944061f3.json and https://artists.proofprofile.net/proofs/artist/83965e0d-ca93-4817-9b43-86b7944061f3.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3221e4cf735383dadbb2c35b38bcff211c7da91842da411107e90ecb00f1be6f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ZAA041100182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdebc6f05a1b2bd06d9246b71ae5e61e3940305b8300bd1814bb1b35c1df354d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ZAA041100171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c152c302e1c027cd7e20a1abdaba7dccdf727e36f4a45d299983e9c0eef61eb. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ZAA041100183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c4744b954847192b3f01fcfee2d354ce1e5b91c140e7aeb1c9d75dc34742820. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ZAA041100172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb01537c6612c5735ca8a5813c7446ceb1912225339ed70a06089a009702222e. 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/ZAA041100177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc047c555dbc09e19dcfc53cb10aaffe7d16c871399d7374b9cb22a534dc1775c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ZAA041100178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc18bba094454a6e66a1d6dd3739ab9c5a4a130b8b7694dbbc6b3a387dc8dd6ae. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/ZAA041100190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86fee974909bb7a090319804d1ec7bcb8520a424d489f001f19666197e62eb56. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/ZAA041100169.
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 0x0345527f4d45c78d5f3d7428207c42c6d0a66f236017febe8584e10db64eb249. 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/ZAA041100181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91156ec32989c786119d601ce78ee73d15b642d5ead6c5698c4542caaaee7e3d. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/ZAA041100170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02023d95ab4665dfbd9041adde58f22e988c99c06ee02332eda0766998ff0cb7. 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/ZAA041100184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddb36ae831db4d3ce958636fc52372c900affabbf5796115a838963af887518f. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/ZAA041100173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ca498c0b5b81f17cf7c9b670f5437a563a2b4ac58c48c90602ad7df3513d742. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/ZAA041100185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x291b602746757ed9d2ebf18d07971ffa207b794a552960b71ead837a7880df4e. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/ZAA041100174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab83b272c2c601ee29732d0da73cf01626a55ac5fd211815b6b49b1ad1830e7b. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/ZAA041100186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x699fc1fc020244ff2f4dfa1356439c5835405f8539ca8871e2e94b8575d8b428. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/ZAA041100175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29ef33709b322cdd1a2e371f5d5e25a4f4c7deb3495bdba3b8d566541a385fb8. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/ZAA041100187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80aa5608b3f6d71d3e476d3deacead932787545e2ca87dbd5f38676ac2b96fdb. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/ZAA041100176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0aa78c523f8af8f4ed83b8788438957f2ccae4e829dcb85b26bf2482b87adb2. 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/ZAA041100188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76323b90dfa08f8d2ee08212328d27187804aaadd6e45404d1efba5255f4e378. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/ZAA041100189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd366222844720469c4d050387901ca5e3ea33e53ca9243c03b1e7bd65d5007b6. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/ZAA041100179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e28715298d86bd4a7d477eb1e81e0e4687bc3e6eecec30bf5418e1147691cd5. 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/ZAA041100191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae5141753bf78e8a7f4da36beadcaca05d15cd205991bd0ccef7106afd5cb95b. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/ZAA041100180.
Music Of The Night From "Phantom Of The Opera"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e73a1ebf4bbd4aa16f58e897bac2264597ae1cfb844a9ae54feb1cf936db953. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/ZAA041100192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a64aaf427e83a1b23a23b19b491877f66e5e2dd13a7478e084f2e57166aa9cc. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/ZAA041100193.