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 0x821c5968b3dbc4d5ddebc8fb335edd8e910170d85727179bdcb03848f61ad7fa. 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/130bec07-2af5-4bd4-8558-f402f1d40d61.json and https://artists.proofprofile.net/proofs/artist/130bec07-2af5-4bd4-8558-f402f1d40d61.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 0x447c8721485ba9b2e7a47df5388f8390e4d5a85a3230fdf29dcb9c7b3fae8c8f. 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/BCEEK2300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x831d701a9a85683a19eeb16648b913877e15ae8d358f77a18efb45aac78b692e. 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/BCEEK2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a072c4825e57f8f74db95f4a8936d8c87f1c10cdd7bf7fa5779088a6d2233ba. 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/BCEEK2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fbcb1a3b8f1c8f50560205953c1b9aff86bcd1c2071b206b86a8c952cd8855b. 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/BCEEK2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ae9b433e9bc470ef5b3b05a286ac5248ecf40b49fb8eaf929e49f98e326eaa5. 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/BCEEK2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd4196d78ae6955c525dff63f3551456d8e5bfb2a6d2437b0463c6f6dda6387. 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/BCEEK2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8733de3af22f004971b7567f98514343da3bfad0dca47d8b0aa2c95887167681. 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/BCEEK2300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe09cc10505ce9e590170e379724e82b8fed345ae2f0ff589febf49315f1384a. 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/BCEEK2300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed2839aed49280193e8a2d196c39ea433785b7918d56838c3d11fbfbd9c3c74. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/BCEEK2300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96708fed1408e5c0fe0255a86ca59a0042e16b6ba882c39c35a907041949423f. 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/BCEEK2300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd007831934441c2b97789608c2732b0206c0e6c831c37187d28d4ab4b1f47097. 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/BXMU41700042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62d942ed4f13fa348086b08fc0ce4d7b29b73510b9b89cacbef5b14b6c98796a. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/BXMU41700044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec7ebbf49fee06b448e9a2ab759e45e75a5ae39a1cafb4c18f85d10c46edcdc5. 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/BXMU41700045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe89f04ea255ea4cd339143a9b20dd1d6e5eee04e14f625dc797322951922a939. 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/BXMU41700046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a51d808ef3c9b6dd82f87e493953f5099d796d15d5795f0b70afc176cf5111b. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/BXMU41700047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfc83e167f282f15ee24a8ddbe12c91384497c7d27c60dc39f046a25f7279666. 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/BXMU41700048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28c140c462254a30db172dce12b4b99ee6b863e517e851ac02d93ea90bc2f2af. 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/BXMU41700050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1705f41f994d7c52d800e923f933bf5bc8113ce5eaa8c8c0596d2b448bfd2908. 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/BXMU41700051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1c575071c96aec7332e6ac41927bd1e30878c95830e5a16db8c37d72e3ba354. 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/BXMU41700052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6414915dd19b1f544479c56fc4ac46bdc13cc8ff1393d593ab6d60279be5bb6. 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/BXMU41700053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bea96bcef916634b21a148bdf5764f20df3bbbe6cde36bfd3fa0d7e90f301b7. 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/BXMU41700043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2a9a5daee7e56d42391107e6e4528d97f57f1eea88ba1b46d84aedc88013cf9. 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/BXMU41700054.
Mulher, Cap. 6: Encontrei Minha Melhor Amiga
Sinto Muito, Capítulo 3: Eu To Pronta Pra Gritar Mais Alto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4db601d0a35221a08d46e654ca99082724762b5afcd0ba8efe496c45cf46401. 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/BRU952000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x388bd6e6096f95fa64052c16704841351bf1b0f14e59755e09e825acd153f4b4. 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/BRTRB2017062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8edaf45d6e944b207a61c084218da7996cd68a883f121fc73697ff5950b55c7c. 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/BRTRB1742152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce6ded5f6be066d3f0090dba9728b3738b0a80ef9836f23aa7f2e39db36d8fa1. 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/BXSSW1702136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d74276d5cf4215dca14eabfc820c6235df88c694ecc47de15113eb12de0690. 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/BXSSW1702143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90fcd3e0f9ef9a1700cb9e8902e94948d6e651d81bbfc771c92db1e147317636. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/BXSSW1702134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04e0eab332a7c7c0e01cc0e95d7f6bb60537e842ce08c5e5643f68727a8abdb1. Chain 2 (Bitcoin): anchored in block 960419 (2026-07-31T15:20:33Z), 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/BXSSW1702135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb20f786652c9142abc485a8f3ca4b7d9baad867e621ee760582d1a3dbf211e6d. 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/BXSSW1702137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18840ed849182f71850686df69ce7583c3555a9abea46b0928465f8525ad7da6. 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/BXSSW1702138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8984f2aabcd6967d4122c363bc58a8166695d223baf411925fbcceb97e476f4. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/BXSSW1702139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a6eb8ca5e38c20da58b92a235687d478bff31ef259914c1d9e931e640dfcbb2. 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/BXSSW1702140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd941d7bb010932d5e148f81fca4d0c5299eb4af1747b696e19e270a023acfd6d. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/BXSSW1702141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27efef0bd5577dd5d264dd3211c4dc5132e049ecb206ac611ba935082f566756. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/BXSSW1702142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x191ee002b0d370700946a214d7fa91ba979c2d4a3070d1b8db8af256209626cf. 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/BXI1R1800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb4daab90cba857608f12d826c3bc53f748e9f9cd12242c712b7f48a73cdda40. 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/BXI1R1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc93c136630976e68638fdbca7f8c066df67b08e45a17c1b1e6cdc155f512533. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/BXI1R1800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25c797de292e7397918c6c25755d43602fd297488f0545acbdc090958593bfe5. 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/BXI1R1800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x223708ed4d5e3479348b66f9f3aaabbe5b12a890a6a779524c26cf63d71f59e5. 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/BXP342000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x931b079efae3b0170e33d40f3f6f987a18e088bc66445723e8d27fd2b054574f. 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/BX1LT2100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb830b879e3fa67852dc9071bbf4a1350e1b2ab708c04df4f12dc02a773be4ee9. 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/BRKB41500032.