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 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 0x9b7b702e682d44fafcc726b6b3113eac0ae17882f67e4f3dbd218769a8409aaa. 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/064ca16a-6dff-4ca2-85af-f765b9dd4754.json and https://artists.proofprofile.net/proofs/artist/064ca16a-6dff-4ca2-85af-f765b9dd4754.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 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 0xa98105069e96234db4f44982cc253363416dc2df4d4a5daa3c1bc8b25acf1c26. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/BRXM91400045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3499e232984a155db97e7d6ad1706436072ad0e6de192a2365656423faceba0a. 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/BRXM91400046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63dfbf8722d43b0a8acd43bfd45826a9a9e6598775bc307b43c9b293a2b0cd7d. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/BRXM91500039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6fa4a0d0a6a07e5a1816247b612dd3c008eae558574c6e021f3dadd877b048. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/BRWMB1600288.
Viva la vida (Participação especial Tropkillaz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x778b3e809bc8c515d71019cb697304ef930d09578a0a6e7e5caece0a61e21e39. 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/BRWMB1600290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6fa4a0d0a6a07e5a1816247b612dd3c008eae558574c6e021f3dadd877b048. 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/BRWMB1600288.
Ela disse (Vem) (Participação especial Haikaiss)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f76245ef5e140603a2ab07c24a701875931a0e9fbe4632315b4a51e9c6e856b. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/BRWMB1600441.
Aliados (Participação especial Mc Lon e Mc Rodolfinho)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b0b7d861731ba1199c522febfe3a4d2f3ba275a7d872c2af3bf141aa4417c03. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BRWMB1700304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebbdc0f6f872ce9baefd8b9d04be20629961e4b1cbd0d52c3be024bd830185e4. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/BRKO11800188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2548edef13aa8ebb7f4e0617099c467785f472d7720f37dc9e46a1602efd7869. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/BCDKP2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2660c4deb64d79deef69b22bd9e16653547257308a165b9bb39853cd5b5ac25e. 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/BRKO12200241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9713e694f66db471e370226fdbc3cfaae47285818e41199c9ecf3eb355e66072. 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/BRKO12300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ce7954082274fd42ff2aabbc40ef607e8deb4f60d59c8ccc6a26cdfbe5cd5ce. 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/BCSOR2300175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x332076596a33e96f1b96e017f5eb064ef1c8b1e220987ae86bb5aff697d5fd62. 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/BCSOR2400059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47a4f46d039d6fddcc32f0b09b76240f6351936f0d2a8a73dbf93573dcbcaa10. 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/DGA0S2431508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f7cd3c35a1d003f161fbdca4460fcc1836a73d10367f0298ca70316cee1d64. 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/BCSOR2400167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe41792fdc6d3d4730b2376a38931b6afe09b535428b61b1be66dae8dbbe11cbd. 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/BCSOR2400168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39cbf7206f571b6b283fd7bfac2d92546d90e33c584c582601158ec0590da868. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BCSOR2400169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50fdb9e2e64cd7f1e552f833bc5a05e3232124de9291b350698b9e4f657f97e4. 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/BCSOR2400170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec224947a2d845307689f06373cd2d3d8edc08ab7cef06c8953b61a944b3b526. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BCSOR2400172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf38b852d0c59e506360a0d9b366e3cfcd98b19bf23a53ec5d68f80499486f5d7. 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/BCSOR2400175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95209b33567c07d640380c35ac269a69b120c158c6417692003b94373af366de. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/BCSOR2400177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01cf0644fcdce7c332d5d362a16f478d12d47a1d627b072d823df8dab6dca5e1. 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/BCSOR2500054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x616f502c17701badd882db0e12c086db4a3096db139077c6caa53e78b8fa1f2e. 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/BCSOR2500097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca56218cb612a72fff7718323b10f129eec04ded7fe9450cb4f36db471a26bef. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/BCSOR2501055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x650c838b8e38398ccae52ce44f9ae144f5a5b6fe2b6add988dada8dca306504b. 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/BRXM91300068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d4b459b30ea1959632e2530624a2babbcb175b756ad22d2d11ec3728b125e0b. 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/BRSME1401154.
Suíte 14 (Mister Jam Remix) (feat. Mc Guimê)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c8795624299edf9fed4e03cbf70415cc3ecedb626cf73725373cdf8dc95b6ab. 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/BRSME1401310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a07be392fb074784ff0c8a3fb6fd787d73934e04546913bf9c2db932b6f1efc. 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/QM4TX1545931.