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 0x8a3802540dee33f8e1044508adc098b0bcb7359a4c5e9696de1da98b2a4fe80b. 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/f02bac48-e8fb-4eee-b24a-c5168a1577d9.json and https://artists.proofprofile.net/proofs/artist/f02bac48-e8fb-4eee-b24a-c5168a1577d9.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 0x3462d938a3645399345ccd02a64124fee881f521e57c9c2a0800d6c9f0f7cc77. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:16:14Z), 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/BX0GW2200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a3eb991958b3470326ed926a5d2a913ced6647f240eeac2053c4bd8530f7fc4. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/BKBL72400119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cda68f68305d4e6a58836ef273f6b8c235116cb0f5eaf1cf13f03e98ad77b04. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T12:06:12Z), 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/BKBL72500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd581547062d18b172f7578f09a3840ec62b489b8eb3ef858fad5279c5076297c. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:23:51Z), 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/US7VG2516311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa088c7e214d03a8147bc228eff24eab81b585e803eb7462202fa658ffb896168. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/US7VG2516318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x466bb99d3baac6b217e839631c2c98851eb1ef1f723699f0550c199f66127ac9. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZGLS2513571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b3165403e0cafc069ca6739a9a9633843c9e4e58a5791cae347f15bc94ddbe3. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZGLS2506624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97dcca1dca5c7920a198353b10a6e97f31d867487b34d4507a742663629574dd. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T11:19:23Z), 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/QZGLM2599325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72575dcfcf6702daea1933f5aac0be2ead64f10977b0d6e9d3a71dd21be2734b. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZMZ92591011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x857360f8365765541f29af512c5eba2a625e0e9a7e2a4e98e1adbd0cefb909b6. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T07:09:47Z), 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/QZGLS2503697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd42b256f1d95303741288e28efe3c7f8372446c8642f263691c5acea76081387. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:37:55Z), 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/QZMZ92562679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7497b6fb26f87b04cc4f6ed3eb0c8cbf505c703c3571a99d6cdb372889e81a8. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:28:08Z), 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/QZMZ92551788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x733bc92cf43c8ab04f0cdb2aa1de8e1803c1cae8af9ff3deb70ba296bbe1f8b3. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T10:59:33Z), 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/QZMZ92576103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafc5c9f0044970448e3509164cada6a072c44a4073e1d63b414f9b477d109cba. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/BXYR22500043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x367b87cdfc7ba8d82c3a37137a1e869b4908425af0a8f31f91d631365dd86580. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZNJY2556305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x920bc6502d4f20b0594e4e678c4b9ec5d9608462d5b05d984724855ae85e3490. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZNJY2556240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49f0d73865edd376dd99c933f94995a8f932fc343886e5ccd28faddd207982d7. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T14:05:42Z), 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/BCZHJ2500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe871a936efbfb5327e83fc1319c68bdea4f7f3bc69438537ae9d8dc75b57c4fe. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/BRKGM2500030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2077e8b896a8988e1965f72a61a8fc1daf658c51f6b0fc733393f65bc08ef199. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:38:51Z), 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/QZNJZ2504348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x458102749095d1b1807fc744354c98f8e0b4684d94cda453a485b839c60b0f6e. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:07:35Z), 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/BKBL72500050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3434af7c3b8241702c3eb752efb4baf2ff55d2b74c7b23945f5d32b5ee41d58a. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZNJZ2564115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cb3157e2e58b35f8bc1058a2177142ff53dd36f08c4d283da3971521cf4d24b. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/BKBL72500083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x464f827664c3f3df303031c2dabd4a10c2f508bbac91d1ec6e65ecc1148abca4. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/BKBL72500064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86ef3b21d7517341c3ab579fa61debc1cc875297ec82562a900709513563d1a5. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/QZMZ92576275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x652257a0d1b8cc6aa07d1e063de142d722e5b256cdef04447aa3d7b3d2ec0b88. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:37:59Z), 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/BKQ2W2500110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfb3953bef7f28ec2e9a5acde66235191883336123465a30de6ba4e5d240cae5. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:54:07Z), 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/BX4KA2500062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd55049e5a11a19ea459554289cc3db54799da742dd8515f83e63967cd2924e66. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T10:51:01Z), 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/BKBL72500065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6384914e258d9ee1c67ffc9fb874bcb3ad0d9026abbe1a2c832aed84f748d483. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/BXYR22500068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b32e5e33daadf5c9f333f98f5c9cd6a34a3e36c54b019663cb658f91df108d. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:05:46Z), 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/QZMZ92576271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8091da4304845b5de73432b252dd0f75a441f29a0cd8783afb601e67c86c3007. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T07:00:39Z), 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/QZNJZ2529116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x121fad5115dae550c6581b56300ab59e1c3630a90eaecb5e3d57a1dd68fb1a35. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/BKBL72500067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73562b376c5619e8888a9e98b8cbd0aea7578fd2681936818ec5fceb1d0456a6. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZNJZ2525023.
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Vem pro Baile da Praça X Baile do Jacaré
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x797315b5e7671773acac38ab75113156372f0d90653beb95d84184a3925393b8. 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/BKBL72400048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x632f09fed7fb78d761cf210690173bf00bdde1d8f307043b6566b4686b0822d1. 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/BKBL72400047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67432042e7303f1456f7958abe57d7ca5ffa6aca9addc710c93c4af13f5e87d5. 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/BXYR22400032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23e232460c2d90fd5c6100ccece76870c8c1081f6e35a09279a731209f2e095d. 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/BXYR22500007.