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 0xb3167d9f86d894efff87f19562ab3ff6f1ece18788e5a19eb209dc25bbdb9728. 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/74fdc3ad-e37c-4e8b-8cdc-9a7a4d1bf609.json and https://artists.proofprofile.net/proofs/artist/74fdc3ad-e37c-4e8b-8cdc-9a7a4d1bf609.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 0x090a1b01eea243b11db0db2712f0f2b45eba698b681e574988e48af41ac6c4c4. 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/BRC5G1100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d5b3ee82d7ca9c39c5d95744c66c46c10e46bb398fbb0a5432c8b3f96fb46d7. 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/BRC5G1100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcca98db23b0da0e0e15e20ecaaddd6dd47cc62043fa4938d974448d5ec091909. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-17T00:00:18Z), 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/BRC5G1100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe1a248050a7b505338b0bddad113b4c76aa8199601e5ac57286f0ee62f91411. 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/BRC5G1100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d14a05ef5f6da30cea2b0408d99741134892443c3e2ca7da0c6e6b1b5f1d51e. 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/BRC5G1100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d3a975d4fd4db5d202549951bc8bb00844a6908926ba53e85c7118e2424925d. 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/BRC5G1100017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f36cb73f66e9cf82d895fc67348b15ef27dfec247f72f091cd3963f75412c94. 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/BRC5G1100018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7ffa40a6460be05230dd2f0c6f61b2d36a37a60cb9d30133ad452da8051645c. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/BRC5G1100002.
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 0x310dccd2fe9f6f1aa678fc29eeeede279d9e7e657950a93ddfab420dd6d03ab2. 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/BRC5G1100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x414d4817db5e8b1827e4559e2362480028d041416ce0f822f22f1467ab1e97bf. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/BRC5G1100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x899857d5e0f5bf6fffaf3e304baa411bc450f7a5eb423b821e0cc24d4ff1d51c. 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/BRC5G1100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ee00738f2c10c23be69a71b26c9c86835d2f9e4832051f9b997c8f01ef7999a. 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/BRC5G1100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7be44bdee0a9d9a9be82e02ac67891e7760686d61ae82a36f08218572f144ca. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/BRC5G1100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2e2a40bb40cbae01f51089a044ce0c8e1e21556401012569a3e0ebf552c5e98. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/BRC5G1100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c429a85d3250bfbd355ba1962895a391507d3dee6d55a0e01939fbd4e49e3e1. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/BRC5G1100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a971c4f98c74e81eb12b443442aee211c5387ed6821dfd585e0e4cd51b075ad. 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/BRC5G1100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f8510ea9feaa25a9ea4780ebbe3b90ce6e97d11c8748507539358a5b7ccfd3b. 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/BRC5G1100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e3727891152858fb966e47f380b6680fb74b88b70a8d0549009a02a813bdf85. 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/BRC5G0800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc180a9cad2a024047729914ea3b5fc62b5e0721cbb44008cf73e5595a3393ea. 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/BRC5G0800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86cd683538e66f5a09cb49201f16900d11ea1b7c33ba5028b2b1164f8516d963. 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/BRC5G0800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d71996673ef7476f343c56c4e25e3d2ea97e53ea84ffac60b1167a35d66f941. 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/BRC5G0800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecc23b7f67f76752bfe2dd540acc012728cb8cba7f2a5230836c4dd0c8332e73. 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/BRC5G0800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf42ce449e0a914f4061ee1760056736d5e7935435a7ca3024df3ee7b4a6c3c7. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BRC5G0800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8916e276a3f75593ea9b9b4135b88df857477bbe652f1e049cc8b41bf54ddc1b. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/BRC5G0800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac2c52217a7aac18b66a53014ec48f2e8b6fb3745b2e3266ed26a42cf3637255. 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/BRC5G0800002.
Andam Espalhando por Aí Que Não Sou Mais Eu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb022eb2da7ecdacf09d6481ead640af5bc159ade653745aae2c8d9d9bbf4533. 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/BRC5G0800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8df5450c4d83c6d5d02f6e2bcc6235ffbdbac6d2cf91e0f44f7b0bb00ab24a9. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/BRC5G0800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcf9d66a931908bceb2a7e3753724f7094e578b58a83f5a204265aa233c751fd. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/BRC5G0800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe833bbda4421b7b231a1762ddef0bede65a6d38de971a4366d20110cfa9642d3. 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/BRSGL0100276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb5ed0e4b2699b4dbfbc230a989fea4007e43177ad2ae03071ac96ba5f6d1cb3. 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/BRSGL0100286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5955be1c80ffa5e072972de3a0e543d708ff5d1a40f3df84db955b9b3e814456. 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/BRSGL0100279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc97f936ed3a3dfb867c6148d0812b6b91f741e1fc955562d475480f63a1405ea. 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/BRSGL0100283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10b7cb2f962950b40126d709a983909507383d24669c0c72cb9e5c30c06a590d. 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/BRSGL0100281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59f25e25c10d9189008f7cbac6dccc1ccd72f19009a97eb6da9a7a5f9d53daaf. 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/BRSGL0100284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e4aedcb4e33e070f6ddf6ff34c69fb8d3603e9a6c1525e01505ff33a0879ac2. 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/BRSGL0100277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c515ba30713d4b8acc1fdda8f7614b2139fb04b44342f96397282ac0d47ccef. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/BRSGL0100278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d97c1c9689787cd25d520d544d2549db24908477af3af6e6617802f21c8a44. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/BRSGL0100280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae7868d9cc8dad6d87deaa1703d0fd5f11f1e9368b6181fe4e58c81298b4d0ca. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/BRSGL0100282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3efd3d633b557fdf2acf2b168fd6ee2de0139aa5e3002e21df196bb6823f787e. 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/BRSGL0100285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf430b7ae3d30de5b8d582915d62520fca6186cf968d068e363108999ac87ee76. 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/BRC5G2300001.