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 0x3ff7701fcfffe4ae41818d26136a4af49a4dac4140d933d7b0e794838fd74279. 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/cd418e1a-83e0-4dd5-ba9c-9650d31043fe.json and https://artists.proofprofile.net/proofs/artist/cd418e1a-83e0-4dd5-ba9c-9650d31043fe.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 0xe86b7929465037f6fc49178ab2b336ceb2de42bfe6b4814d9b8a75a939369e37. 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/JPG102200971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf0099f3978226c2c2831e885c39a31e70166c2e69e12542c5d648359570c3ef. 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/JPG102200972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56edd91500f98c6f90a368fb07a59caf80baec56c1cabb41055e07f9f65187f1. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/JPG102200975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdf6365ea826dbe0e36fd20321a5712a758470002e0ed001f31ee109249695c1. 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/JPG102200714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44384a25aeb9669de5f4063241d809c34b795c9e411aa8cfb1f46087f31f3cf3. 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/JPG102000772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58607fa6e7af1ff0125d4d4e9bb9d28f80f9986731d956715245f6c7947e09a0. 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/JPG102000773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35b691ef1ffa5f2ab350ed4cf4c50e7a944060ea68f74ae09e7fc0bd14e47666. 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/JPG102000774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1285577a6833b010e967461d8296f16f98d43448db248e17ebeb9017f099baf9. 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/JPG102000776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb60faffa4359d2522a318856d514327c446b08fb39b0df9e147bbf7dd13e43c. 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/JPG102401765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb55fa98130325d0b95dbfdbc86f18d0cfcc1ed5c77fd6dfafe56593cc324f815. 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/QMBZ92342223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce49f21fe1000281ce28df4b0d0cbf2c3a2aeefd37dfd236b4851f137615a2d0. 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/JPB622202521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b6bd6baee7b3b25bd3ceab0990138e8580c6e4456f252e12811fdc04f827533. 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/QMFMF2223897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe86b7929465037f6fc49178ab2b336ceb2de42bfe6b4814d9b8a75a939369e37. 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/JPG102200971.
Trash into The Sea (re-arranged by JunIzawa)
Trash into the Sea - re-arranged by JunIzawa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc72f68e7650ac2a2430fffc7d400f4897d536a1837707aa938bc3dc654c7916a. 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/JPG102200676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91da4873f7ab6b3989f6603cb98e68586d86ab43212f82a307e59f9aca8d5810. 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/JPWP02100419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb55fa98130325d0b95dbfdbc86f18d0cfcc1ed5c77fd6dfafe56593cc324f815. 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/QMBZ92342223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadaa5e80a2909fdd696db829e59b61c92805ba28b14f6d92044ceac49c385056. 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/QM4TX2452017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x614afe96a3176fe53a932d8e75e2bc7dc9306f92a01ce0757996dcf9496e9a71. 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/QM4TX2452016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cc931b5e7ce69a7f20651281f0c45d7cf29b03d1e2e5863651b4a9a647f6e03. 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/QMFME2321255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8923085b57e73b314ea9214addf91e97a7c5f2c9354e4e1e4d2f704bcb37059. 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/JPB622202566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x279cbacbd9bc0667cefcda6bfa931fd4e0496b3d61b521908ad2d9b6710f7f2f. 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/QZTAU2147663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbacaef56c9e57ddb6c1afbd474cc64b234ab1590ef313923d32d79ee103abc1. 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/QZNWW2134634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18646ccc1e15895054f2a4bc457b739f90711c5753c92328606181811314cf53. 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/QZNWW2177258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x994b006ae74253b44b823ef5f1e758d755328f3da82e2a6ec7b8316e67b25522. 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/QZTAU2147676.