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 0x631489d8522264dc2f06b5e9996d60cc0f0e3955349a674988487e4215e9df2d. 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/6586a58e-1f0c-4924-ab45-752b19954018.json and https://artists.proofprofile.net/proofs/artist/6586a58e-1f0c-4924-ab45-752b19954018.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 0x79ab1d3abf885f0665b883a27d2733f7b1aa67a6e6fea72916a1a7e1214813f1. 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/BKL6I2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61ea1b3b5c6976a08f1b06035d6d576c982652273223f4972a677312b9acebad. 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/BKL6I2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa04b8a4175e5fb90c8fd55022ca90525edb42e7200c149895150665848c6c581. 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/BCOJI2300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a2ca71e63b727ae093ca4ac3d85b1598a684c45ce85a99cde5e6424edc373fe. 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/BCE3C2100039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a01ea1f25ffb14256d1beee0ee137829137eb1aaa4a0c52b637a3977c542162. 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/QZNJZ2134037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02ee8ef263b4ea78d0e15d0b57cd97997b22184e9e7f5f61e52a1c0eb4ec283a. 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/BXS652100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ce10932aafb3d83d9479d6ee9f5c5bc34bf46fcf34c25f85dabf4f5917f2e14. 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/QZHZ52131430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c22ad9f8099387278e134b6b8ab4c5bc70737dd2d75d60e1da6d0aa90ec29ed. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZHZ32128828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa70861bc58e0288a2f0fdd77c048bdf1cf5470fdde2353405a0e99672cf416f9. 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/BCE3C2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dad33bc589f1d924672ca537ccf55af764e161536c0690cabb3c90561886b42. 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/QZ5AB2199851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97fddbc90994e958c3d0f2d7ca333fba1f48989b5d8fa55b7ed7b21df21b03b5. 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/QZNJV2091233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27d1e8f102c7ea65c44d575d6a6939e01f37a591bcbb77d42b279183966d65e8. 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/QZMZ92049395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd9891b63fc79488bad0e7ee9e64ba1c5712427f5b01ee070608232d85be6b2d. 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/BXS652000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf951bc061db5a43aa7f311dac7b37a021b9d598b54b258049aef5df99e5fe55. 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/QZHZ42038761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45f1ea17e946b2d40f759ea89ce1ed8c5b7727f2699828e15e0e9dd7c3371b78. 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/QZHZ41982999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe37cc041127e411794faef31961d8be5be0a488039f34e99962ef3376f43a4a5. 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/QZ5AB2073383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47e13891fbf7d97613b43c2e2d1065ba7c09646ad06b7a73d784d5e4626b32eb. 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/BR81W2200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397a3adf30e2d1c1ae38c9cb4f0997bb155338c05b885e1999d9dd00a1e4c6c5. 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/BR9YX2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67975473fb41edc55e5534f011c4cf4bc83dcaad7c31e5a7cd1ec861c33f634c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BR9YX2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x729ce4fa2691bf0094cfc03dfe864a70df7ad2143706c046b0332f7cd5075a68. 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/BR81W2200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51d7e94e2d6af4c77cdf3798d616bae90ec98671d3d6bbf9820a5df47b21ff2b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BR81W2200002.
Sinto Fluir (Remix) (feat. Julliany Souza)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40d44be0f9c609f9a2bd4e3769dc2d20641ea199b832e9b0cc2f30ead725ba0a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BR81W2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x199fcb3886200653b278f79a55701e2e67614acc91f71dc34fbcd61f6b1e8923. 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/BR81W2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x434fcae682d2481e7f2911d425db30e7285e3d8b06bc7997b35f33921d8aeca6. 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/BR81W2200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8da399e1f521fcfaa013f4dba21fc9251f380d44113abf05f76cb560235c705a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BR9YX2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc262e07e3868613d99ef47e4144302278d2cb3827a9bc93179f1506d234d271. 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/BR81W2200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c33eaad6975060a8cf55a72546db76f698fc73b3a38265d547dfa929161bd2. 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/BR9YX2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e1da1fbfdbdc539ae326abd838e9c6cca151c108d67ff6ec60131238dcab12b. 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/BR81W2200017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf57c4d1397c0321961eece4338ffe7ec5ad458263963abbeabdf70a334d44480. 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/BR81W2200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e57d4cea5040e93ddcc5b8f4ea0ccd82dbfd810d0f759fb27ebd2f498807d3f. 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/BR81W2200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7836cfe85785db906282fb0c04ff50adc6aeb6eef506b5bdf27d4dd4007f8df. 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/BR81W2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e3186e3181efca228c77817d309b3e9d18f5992b54a0cab3445fa35102bd21b. 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/BKHHR2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x137c0849c640598765ba75af4a2c1f2be3f6e9b3dfe5bd4bae2f24398cd5fd5d. 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/BKHHR2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45da9f9b83b2274f276691e8d6148a791f0bfda50aa401afe18f11378e6add88. 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/BKHHR2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x271fc32b5be16c2aaa5ec106d9f68aae4f982ae86f43b55a0a4c71526fe09e0c. 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/BKHHR2400004.
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 0xa360ad801990da9f60a5f6a091fcfd3ea8275955062a173ab044e23328452bcb. 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/DE1IQ2303266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76145611058ca0ef251f5c21174c782caa16b4a698a33dbd5d6adf21cd65d46b. 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/QZHZ42136125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x977f1caf56aa0ce2254868b653dce3de43bcaaf5d69bf268e675dfac45a3ffeb. 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/QZW9N2219009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2200f9503e6b86477fa850f88e6f82c50f1a47be087990325be72885c642524c. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/US7VG2352554.