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 0xccbc9a5843babd66ec790d284ed27e7b9e7b585c756034133c3c0eed962ad0cd. 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/baffc72a-4027-451d-b375-9c27ba095f37.json and https://artists.proofprofile.net/proofs/artist/baffc72a-4027-451d-b375-9c27ba095f37.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 0xbe62a6f02b6b0fc7d397bf81690b90b44e4aae00ca5f8604ee97eda1cd3ed36f. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/IL2301301080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07bbb43729b22b2820a56d4e469cf855035060e5f262455c38e70de340f055aa. 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/IL2301301100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d074f37fbf8a15cc7b132c16b38ba221555b70e6ab7e2e02eefc80714daf0f3. 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/IL2300702910.
Chashaveti Shehye' Romanti (I Thought It Will Be Romantic)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x171ffa46fef59e5e41cfc4d04894be6199eb7258582b8454e6f3d8ec171e0e8e. 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/IL2300702060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3224494395e5897accd08874b0062de5bdf81900b8486ae4fd16f4b767531e26. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/IL2300702120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8145b665c2724bb77f136ab25e55bc2ac3ba5bc07523901dc0a8bdc3a460eb5d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/IL2300501030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf23e7b7ec0e5b113c5a8c134d9beb7bdc9ced0ef17f5c770b160ce91b0e329c5. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/IL2300501040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf255689e85d0efbd8992d2d7f8bada94490baa49a372010db0ef46cfad3475e0. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/IL2300501070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8906c633b0637409fc5b996e05b129231709c0c55e4e877188ddf720907eb1f5. 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/IL2300501120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2fa3c9d82f14644ee9857c6b2781221a14fa95c6c6bf1a04a6dff7c6d1ca6e7. 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/IL4642200347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ecb3ea240a395b4a8986cd99e4b020ddc4ab7d06f15efa65bf522f86e7cb603. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/IL3171201020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f243a68f1e4c751e2e4cc15afc94940bb4ebf78cfa0f8e6fed5212c7d19871. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/IL3171201030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb94fac94c2d1534d76ad2bf92bcd4415e9f851d0c5d657f6b7b0fb4e86097f9c. 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/IL3171201040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeff6dde337aab0f04a863370f673075a2c75a0066590bb0581e5955a2559195. Chain 2 (Bitcoin): anchored in block 960352 (2026-07-31T05:48:30Z), 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/IL3171201070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8629ff81376116cd7ca50cb3752e9dd7dc27ee197dba923f443cad23b3af6985. 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/IL3171201080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab0226f5e9a6efcd8406078a9275e9f82924165bfd551f9af06ec3db16a905e. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/IL3171201100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ad7322d5e4e261f3e4999b85802fe6b3ea47d6cbe73b9924447336e880bfa09. 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/IL3171201110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41932adab4a09eb6f8996c27acc2f8dd9768752c94675e60dcaddfb3b12d58b8. 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/IL3171201130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0119bd11bf67ef41aac440c24545f0b81d1107b2433ac4cf7bef1ac819591c71. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/IL3171201140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dc2a0e8989f927e5aa189dfce0e58b7396b953f5d025ca264cf8a565507d287. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/IL3171201160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66a31237de22930fee20934fb2cc614a883a8cdcf77753557397931cdf0bcc2b. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/IL5841718437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60534a3665ad5d1d1d7f88f57ddb06a22a64436b0c75c5364ddd4a44f68e81c9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/IL5841718438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8db4c9fb7323567a5139e814bddebd8b78a12023e06f0234a58944cb1865842. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/IL5841718440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f67a00f950b9c4b49319d4d8df8594f7017a57e1165825522f56bf52f6144c0. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/IL5841718441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3311d5496b627652bbd07206fd3de859b1cfffbcae6502f0e3c070917ee40b17. 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/IL5841718442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6171fdbb488513d284c036e368a5dbdc98319a336e642c64592d5e87ef6f32e. 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/IL5841618015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4faa9cbb629e4cdd214ea40a1b4d70e41f2996a5afb1c072c91d252f012d1d93. 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/IL5841718233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc9ad1734e9c7c94ac07be81bea60a38f9b790e06928b12ef4535d6f808dc9cc. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/IL5841718446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d074f37fbf8a15cc7b132c16b38ba221555b70e6ab7e2e02eefc80714daf0f3. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/IL2300702910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x171ffa46fef59e5e41cfc4d04894be6199eb7258582b8454e6f3d8ec171e0e8e. 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/IL2300702060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3224494395e5897accd08874b0062de5bdf81900b8486ae4fd16f4b767531e26. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/IL2300702120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79dc0e7b5dccc4509559e682675c1ca2c4c358890cf3b4b7aa4982e25dc32c27. 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/IL5842551274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6cb299f6f31f4b1e24dd16e398c18ba7e1a07154dbe721c2564935b53cc4d37. 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/IL5842550722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef621d611cb7f25425e61801164c527571ae3e9c51b0ce41290384c22c36e1b1. 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/IL5842449857.