Crombie may refer to: People Alexander Crombie (1762–1840), British educator, philosopher and Presbyterian minister Alistair Cameron Crombie (1915–1996), Australian historian Bonnie Crombie (born 196
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 0xa0c3aceb870a6e3a543d66595ee691c0c472f648f96b02292fa19f8da3332102. 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/9d53c7e8-acbc-4104-ae59-f0b76a4552c6.json and https://artists.proofprofile.net/proofs/artist/9d53c7e8-acbc-4104-ae59-f0b76a4552c6.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 0x93949ace6711f32408527388f4ebe78a2e797d089b7f209729b4d8c7e7fedc44. 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/BR7JX1500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6caaa1c59654a2f1a1b526e8e8f8f79b30c341765f46b1882eed514efeba3a7. 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/BR7JX1500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06d01d654b56074345746b35283f66a33f7a0929d0793eee7a8446f1b219ac6f. 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/BR7JX1500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39a4f7f480d7265c978d62dcfd46162b671d2aa22b0b93808829ad1b78e6dfb5. 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/BR7JX1500001.
Fuga (feat. Lay Soares, Lilian Soares & Simonami)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb96508b551f4f7e34fe169eb42eac055a075d4f473363ec214839399a8e73069. 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/BR7JX1500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6028d3e8e9e09e89c932bd71e01d98d7e8242958c4fa9a925a8daf6ac21b59c2. 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/BR7JX1500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa13276c23039a60a377317d53a7e96789ed668f20f6707eaae7316baf47ddb96. 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/BR7JX1500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c5610765c061cfc6b3d0b810f292da7abf09b18456fadeeb316298f56b1f1a2. 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/BR7JX1500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x386d7dd0a143ca09ab0be547fcf00493ce2c1f432f97c7e36dbceb25c38b1afe. 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/BR7JX1500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b359ac6c5115837442c90657bd51e5c4861d4a216c6294a343f444c92b1f044. 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/BRCJ71100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad5d124c8b496cd0c8c437c4a95394b230e5224ae4a7b020a3dc18becd86d9e8. 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/BRCJ71100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b3c5f16beb098aec05e17b6d305292c8390cb939c2247276f20fa339cfb8de0. 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/BRCJ71100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb4b5f282fccab5dbe76d9ddedca0bac54c0d2220307bb48a944a7c0d8e24b3b. 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/BRCJ71100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2d33b25c3957de31d59a75c32debf34a60ae0b798ddc54962904bd433c44fa3. 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/BRCJ71100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1b11f401039b48296a302dc8279fd0bed05d95e3511798389689b145dd42c3a. 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/BRCJ71100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb0bf1d67fafbe4f8a1e90ac67ea04e08e3df6e9785eaf7bdedefa5252f1eb29. 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/BRCJ71100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e1c8dd10c199537851926c5f844896d7ec4b8093d237687d7a0ec3307b12178. 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/BRCJ71100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4065bfe2473a2f8d7f59da8cccc67e08199c7f7e00999b4a00c43d714dc72821. 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/BRCJ71100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f39d9894d31548a83155a696d5a54141f1311dae9bbfd9e6277f5536b8bfab3. 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/BRCJ71100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c0918533e0aa3b307e2e5f105706f10aba1ce3a5cedd3fe3a003c919f10fb6e. 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/BRCJ71100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x629774c5d986325294adea817a8fb8a64985c5f3c7b10c780ccab3ab9aa3ff5e. 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/BRCJ71100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ac4bd6fe593f6c13c9879b3de6b3d6967d4a89c01755ce724db1880fbb8da18. 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/BRCJ71100014.
Crombie ao Vivo no Teatro Municipal de Niterói
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda3bedc96affb7eb698a911e1b46520b4117055b72a6ac36fd8a3d6dca41360a. 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/BR7JX1400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4bd85d9d8be19b65c6756d01e50b1bc0308d5a5d95ff5b5c17ddc7ab6faa30a. 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/BR7JX1400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe31f4a34af7cead83af75468001e1842efefedb543f32aeffc08340c58382ec5. 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/BR7JX1400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5528731f8aa1048273f74edefe77d219cde8d8cb1f99b146e45612465b66adb. 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/BR7JX1400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbc30d30fc0e256aa2e057dd0144788b2246b295e86e9f09d377eb86246d41dd. 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/BR7JX1400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b65c58dd674924b482ebf288e66cdca83f60e85fcca8eb5d24e97a56221ba11. 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/BR7JX1400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83cc007d45a118eed2cc3ae7ebcb83fa0a16d194ac852c92035a252d5b872a01. 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/BR7JX1400023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x798391f2ba53fe170f0eeb82095c183ca84e77c249b9c75a2627a8d824f59203. 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/BR7JX1400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x589b3b4d1e62c7c2bfc917f29af51672f79901a0940ef68c4c10d3f3de5e9307. 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/BR7JX1400021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40231704f06fbaf1c3b370dd17def62083345ae3bdf6785a90ac62ce2a6e7fe7. 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/BR7JX1400022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccdc0b5b4d2b327e46a273ef13dfbcf6b209b9a46369fd746594293114226790. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/QZNWR2409900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4867a58e816bc92c7d4c3dbf8599e3eeb020cbb8005450e8dbc78ff96da967a3. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/QZMEP2447013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd59a2d8eb66162bbbb261d843d806367e6b0cf8fff73173ca2ec835ff7cf0b76. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/QZK6M2345948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab7ec55b02b5bfb5a22bb5c6d03af7b10c2edc0239bc773f85692319cf9c3525. 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/QZES72341986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c5610765c061cfc6b3d0b810f292da7abf09b18456fadeeb316298f56b1f1a2. 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/BR7JX1500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa13276c23039a60a377317d53a7e96789ed668f20f6707eaae7316baf47ddb96. 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/BR7JX1500006.