Bombora is an Indigenous Australian term from the Eora language for sea waves breaking over a shallow area such as a submerged rock shelf, reef, or sand bank that is located away from the shoreline an
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 0x051bd57e057ec65f51f4db91221c5d7190a21b4ecb9f4cc82bbee88a985db90d. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0423909d-89dd-478c-b7fc-d73059f69aef.json and https://artists.proofprofile.net/proofs/artist/0423909d-89dd-478c-b7fc-d73059f69aef.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 0x01b3833f20f059ef7777dea083959fd5620a2cfe990eb2d0a7eb34ad472addc1. 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/QZTB32269721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd62c3e58df78e045210ae3e9dd5b4dbeb34f0e81d390f8b4d5906a4f8c6857b2. 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/QZTB32269722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d4a219669acedfdfa76c482e6f91962847c77630129102d13105bca9ea4651c. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZTB32269725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cbd4dd162335071158a30203cde42d7a08475232f448a63bf798636238f6557. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:21:05Z), 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/QZTB32269723.
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 0xc8c1bdfba579dc32d6bdfd3bb9724ba1dca7000d3e7379754179c6f3aef73cdc. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/QZTB32269720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe592351ca551403cb4b09c45a8ac98f621a98886117a921c555c73f8b3d3e461. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/QZTB32269724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08da9e2fd9393a73c692bba056f8775c52cf43ccf77448e3b4327a61e81640bb. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/QZTB32269726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84f6dc4a3c6af8d4bbc573733b52f5298b8dbaecf28542dba99634ecdff8d89e. 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/QZK6N2434668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2db20c9225b2c33797e62b4213dc11071aaaf660cc23324cb3e05d5bf8f0bce2. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZK6Q2409956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b8090eab319a761125b06ce2efbb55d03e69687a22cbe8b03528bb6a7317039. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZWFH2304491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62283f0e346c8dca63ddaaf9e025283674048f1218b7891312255e69aa003053. 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/QZWFH2304492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fb53589cae878409aee3c6375659c479f6f1073e5e4d5fd2f61348b3568049e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZK6Q2388843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad800b9b17f5fb03b34cee3fdb3147d0193f8991b618fe33b358ae9871621e8d. 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/QZHNA2336929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x276e5e294f2383d81bc061657e4de63a7afbb05f00d6b5ceb843d1ac783e1411. 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/QZHNA2336930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d185d3ac4199c2e74737c7d61405625ba09933a5cc9ca309448712039943143. 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/QZHNA2336928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed33a375b3b0f08e968e7c95e4834cb03101c1994644d4b7a0d9488d4cc3dd86. 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/QZHN92380828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1296ba38c6b83160142a363bf9dd2a27f356b287d81459604189894de36894cd. 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/QZHN92380832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00ac5b92ba2d923bd177975bc2b0fab81d18f271d8d1d937d598ea98c45fb29a. 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/QZHN92380827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6099fbab6929a5b1ca3b9efa2bad909a1ffbb0b7b4d503d81b0f591ce2ac865a. 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/QZHN92380829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc268170810a2216a4b2aec5467966a3f2459c7dfeba49f678c5c59ead7d0d59. 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/QZHN92380830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c23e91844eee877304c0ede29c22ed331a9bce0eeceb9516cb59fbe3b86a0a5. 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/QZHN92380831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31502390612516c81a969c74792e1034d1679621d6624d7735f6b1ab6cf48bf4. 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/QZHN92358549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d1170fcc99ae0b53922035f30efa7e645edc737a8fd68ee06a1b476be8192d6. 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/QZES72365146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc082913e15f9e4ea68ff6acf5c1902a6fc78a9ecd0c4162611525cae49bfac. 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/USA2P2467163.