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 0x31be463acf7c546240f1b77836a720d72109c5c9fac1cafc78aea15e393a5e69. 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/848a0c3e-fdae-4824-8e45-5eaf6c052483.json and https://artists.proofprofile.net/proofs/artist/848a0c3e-fdae-4824-8e45-5eaf6c052483.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 0x02aac2b1c3208625eb897f586fac9b6eebb189affa2b6ebd6a434f6b6ceecdb8. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/BRHUP0500023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d2a90f910466812b86083d7c547a084802c65b24076ff37cae23eda07a87f4. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/BRHUP0500031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe43e2824bbc41d6dcf0519c1e9f15370544c2fa97fbe77c316504631598a0aa5. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/BRHUP0500026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2cb32489ece9af95f73f35fa2a9f45204299d03472bc00b02e2bcf63813ea59. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T06:58:10Z), 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/QZHZ32111537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa833134c95fc8387c46751a6920c2e64b0fd6e2bf77980d2652d2d509aaa5f16. Chain 2 (Bitcoin): anchored in block 957835 (2026-07-13T09:48:24Z), 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/QZHZ32111538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26aca97d6f83201e79664077acb3d8324d1c037dc903cd585f3dbee47079a7e6. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/QZHZ32111540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c65c5b0ce3b7b34d6854ad058e380e95cc7cb303f0168b7f2469be8870144bf. 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/QZHZ32111542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e51219cff2930fe58612996f4cf2b45f2bcb9466c3506e4e724aaac6f648959. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZHZ32111543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88e1b54dcf649fd6842ab4848919314e344a968beee2f4d360f248bcdd607141. 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/QZHZ32111544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac1263f139aca729be0e97ec867e41021dc6e7e70bbb3166cd78e80531b596aa. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:19:26Z), 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/BRDI51101099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea051714784b54ab7cf77817bb0d5d20cf275405703986e6c3ff4e2e0bd6233e. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/BRDI51101090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fc2414e972529ca2f9403b222bfb0cb0ecc5aa92307b18ff485db0152fe4b39. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/BRDI51101088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc33a8921deafea2ea13db2b257350b1fc8656890f7657093d07d7f8246ef29e9. 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/BRDI51101091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d953fd0f0ecbb25f199c0ddee5d07c26b6c9dac5eb70efeef6adee9d44a8615. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:23:05Z), 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/BRDI51101093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78effb38fde58323118a86cd3456f1af8e841bdd905d02cd60813c2b2c9323ea. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/BRDI51101097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef0e9399d9c2e5eaa3bce989e12445e237e5c66545753a3050155850dfa42e8c. 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/BRDI51101098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2867f92ef9036b0e04b52ed04c93ebfe76de3abbdba6173c3a96abdc33b72d9b. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:18:14Z), 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/BR9Y81900054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbacf4bfa486adbc445831f2ad8278be40b459916b5c73d2db2f399868ed0980c. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/BRDI51700840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe170581c1bd2de10fe2a0d9539af790182e36e35f1198fcf6153b86f7dfdceb. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/BRDI51700841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x261d4cbc234ddcc100d7dd050268632d9751ba64a2056772a0fdb9255c16060e. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/BRDI51700842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b28634ef5b28854deb8c34e0eac97e77e50bed7e5386b74b794cbdb8a79a67e. 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/BRDI51700848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f708127beaea51b0ea1219e660f65a048f2117997c1b4513d2a7d6f6a48de7. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/BR9Y81900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60a89fecbf480eb3ac6a780f53e67c6509f1b2fd00b0843488fb4aee8fcf2f76. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/BXGJC1900019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdabd0a1f52f22cb05c4e3fed9c0aebeb8c6c53824fcfc66ac347f17a73c99569. 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/BCPC32200022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce164b780bab0d8f9502698dc0b92ef40fe44b6cb7dde6f707d0e35470bca117. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:05:57Z), 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/BR9Y82200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x018e952aa283cca5daa4c4cbabde51375d05065a860c391171fd4ac2572973b7. 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/QZNJY2313095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceabd4d2cab345405faf36edfd209b7c549034edfd0d6ccb00ca4b8fe07a56c4. 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/BRUSA0700944.
32ª Califórnia da Canção Nativa do RS (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ab4b5d72ebc457dd2074b3c6d3702c0b27573b9692d1b6d09bdd81412f26886. 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/BRUSA0300721.