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 0xd742c39398ae64b757a5a70c5fcd00572e38a24b100d6add8f0a5211dcfb82d8. 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/f1bbbe70-1366-4c6a-8c79-3f3a03dd37d3.json and https://artists.proofprofile.net/proofs/artist/f1bbbe70-1366-4c6a-8c79-3f3a03dd37d3.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 0xcc200ee14d3b34fde18e62f6e55a1e6bd2fd97e12da649f41a3e004caa65babd. 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/USCGJ2135753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5325b9810cf40bf3e44b4a199f70e7e2830f45c1685183a6730e7ed186f165d9. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/USHM22104962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17c763f2ed9b6a4785314cfc5ad07320787a31b8c504b2e31dbbdced6612fc94. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USHM92137393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86e2733013c1d559a8fb27a38b30059657a70fe5ecbde5c7f49830423664ac46. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZFYX2214333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6b117b519cef97932c07b023d261b8cceaeb39586ca2460132c6245b3be91a3. 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/QM6MZ2226872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84d3338a569ab53c26632477d6ab1404abccaff5e8bfc2e6801329473a533c71. 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/QMDA72289739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5686a8a7120aaf75f3bf0939f3f41905ccdd4ad1f32bd15289c4a7152122753d. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/USMH92394900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c5b618f597353fea82f18bb0f4ab2ca57bb22e74b8dc2d52b2695a64f6f70d1. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/USCGH2474996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42d87227e4e9f36842ecf79a8f0177e1a86d4efda522215d40ca14c7fbfbad1f. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:44:23Z), 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/TCAIU2496087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b1d2dc0cb93d4a6f511248b1421f482d7f4e22d265b3cc791d95d88eb924b0. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T20:13:58Z), 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/TCAIV2496121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8400dec3b52e6aff57786171a8b4d50393240a6012fc1558a0d0a2c00545e2aa. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/TCAIU2496146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73d62fc0179b26c3870ac3b89d21ca9d595eaba6736b97a9a78640908cdf8a74. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/TCAIU2496108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b6d15dea5a10075a26cce63c91a56658dca2f238e5d7e848f2e2072c0538dd4. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCAIE2447071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffe961275d0da677f190d2b0f1e72d26cbf82a4e2e36f61e05465df263bf0ec1. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCAIV2496190.
Me Corre feat. Pauneto, Vianca the Grace, Borrero
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf32156f7c358afced725886667e5e908cf9c335ad64d9a435b284e28645e7c2d. 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/QZ2J21505285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x901c235181af30650bccedc57c61a57b1cd840d4779393dc0c70d1ec970ada73. 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/QM4TX2459158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6576c890bf0ce78bf9e9db9dfdc5e27691785dca16b00d7d58da3f15b3548fa0. 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/QZ5AB2440672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7a2c8fac8bca48a20c8e82aeb66ba4993f71d8e4fe4ec2038125f290a22bb4b. 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/USHM82100691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2abd3ce187421095a1c9f095aa952530e70e38ca6125e6ce2887acd4e6115425. 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/QZ2J21506226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7505bd15adfa0727849f2f5ff6b9d3fd311f3b6533999cff19b4f0a9b34d5a71. 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/QZ2J21506103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a931e555b39058bd9c72ce0850260b155b36df4bdf693ce095d59a5428f9c07. 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/QZQAY2213001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6c3973bb450a6af1de49ab62e95c0a8e0b81d6505b3f2fa70e652510e8c428e. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/SE6I32274326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25ee68a5f5e464583c593539265e70cf07d27eab0537b9ba59ffb8cc414695cf. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USCGJ2256216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99a23728dcae6ad79f745eb0cc2d5fd1c7150354142ed63fe6bb2c5770c97e53. 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/SE6XY2332230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56df70214334f53a96f188be4a357f069f8fb5edec80d31c8d7d268b8ccc5791. 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/QZK6G2310757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13436a1c003a7928ac5da5eec90cc627fa2e9c84576523b3662b7217075cedb1. 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/QZTBE2415352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c6cc8c351b842ee720beb9e7b9265fe7f51ca2f9fe4323ee165f2b739984c47. 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/QZTBE2415353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd54964fef0af81e7cbc98253621b0667fcde1ba4f923c2ad296ccdef097ef2ce. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:06:18Z), 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/QM4TX2111260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x043e9728210c7aa1d67116b4ded5f9dae84580e4af864aface7f481abe260b34. 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/QM4TW2112991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x533cde7ac3d83c90c9b40bb4a89a65c52a1e7ee245aee3f9eb23d292b14533ff. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/QZGLS2474793.
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