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 0x2fe5a20c5c8a1355393998d0da3987a8990934fca3c020e6643c52751ac289db. 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/8eba3400-5056-495d-93e3-fa47b18ad09e.json and https://artists.proofprofile.net/proofs/artist/8eba3400-5056-495d-93e3-fa47b18ad09e.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 0x582865e04c2d7c279b356c759687733989c1bf3d408b99d49c21b349102a1cbd. 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/QMFME2194464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2943825b12e1a347201c057df3b62bf2521dce9694abf4965687d9e3853f1e4c. 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/QMG271300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe45b18d4be605ed2429002ad6d214060b4a69db2f130a86dd72a5d7d96416845. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/QMG271300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2829273d6c7b82083b0c0db097dd8a9dc04eb2d40468c320df0c73b71a3c68cb. 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/QMG271300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6af5380a113bb68813d7a739de44e0e161821ad02ec0e05759347d0f8ef24ae. 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/QMG271300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb07e8c8dd600c08e12a1fb82d4314f02f6c43dffb6d45947f6f11fc4a6efb59. 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/QMG271300014.
Bichiplastic (Remix) [feat. Farruko, Franco el Gorila & Luigi 21 Plus]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c1f548899f2b41b0b6a5d485b59bd05e0d97d2d6fd4aa51d4e7f56278825633. 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/QMG271300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa87cae184bb19d45e4acc7052155b4b9d1a226095208099791b1f7140ec05909. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/QMG271300010.
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 0x48f0e0fb8d7e37a5a598ba8b9a091f0ce396c9fd8b3b4d618144a6f5931e3cbc. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/QMG271300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a14d145b769bc3f7a6388098cc9171ca8ab46af3e52da02a5f8dbc58f11d966. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/QMG271300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b34500d72ab52ee6a6ba5aaff24a9ea01501b0dd06e08d6a9689a24b316581. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/QMG271300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb06f0e46a3d2f37c0e43cdfeb3976a52dfb9ff75ac31902f18d3d2a33685f7a2. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/QMG271300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbec338d78bbf7186f463e421d6e0f64dc70a2831fbcaff0b0d642454bf4d0fbb. 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/QZTVM2218851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6386ba89b98a5ed73ce887a5dec3109164a548d15fdd2d3071c56f0171062ced. 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/QZK6K2261166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1d88f3f4d3b7102ccd0c4a9ad548762dbedc1bab8185d51950349ed94becef0. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/ESA012025358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x959ac483c7683a66c607e54a282f9d9603542d67b6c247304dc5a7a2be5be52a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QMRSZ1901651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x468f633123941bdd0e444406383a999ad290984c5bcaab6441affd4c4b0622c8. 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/QMRSZ1901560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b476dc6de844c25ecb11b4fb7e61bba1276c862a674be177c29596bb84a7d5d. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QM6MZ1923885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0b301746d30feb68df274b68774b1acd47e2b4a3157ddc7a946e3ad3bc6e7c8. 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/QM4TX1969511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x380bff2fc801213af83481f95d848570f772d5981031a324809ce70329dcb340. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/TCAED1935491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4790e3031243ad6c86f4b7fdb6b215a479aef9081058f792d09b65be98d164e7. 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/QM6MZ1810678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87d2d959d39a2a28c3d016702bac662d67ff40eb427188428ba0d58e160b2991. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QM4TW1844183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb0947b00f82e91ebe232835bab8d3f531a5ae8aba646445aaacd5b62378f47b. 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/QMDA61892410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce56a1625e1c4d75e3a2fc443a241a6fdb79af37f8c4994930fe13368874c68f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QMDA61872090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1753dbbec778b5c436223b87c9dc7db27415fae898228b7633c4a6b0c2fbe93f. 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/QM4TW1735116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46a136832cab1250fa7c69d58c1a83251788e5fc780b5bc66c9051ae6e173a4f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QM7281674670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25bc3d651e2810473a434101d9aca6192ce9b710706617d57b8effa5355c56fa. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QMFMG1592951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc80a837cd8b108c5e0edfc7919a354b508d7d36bc4ec207043197ce1d8477e50. 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/QMFMG1560762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff8ede5cc8f7ff8bff574d6837f82dbdd43567cbf5557032251abe961a4d6c6. 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/USXDR1600071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x785e2172a5156b79765f22525bae708ca1b91728c0a82a008c2e5345078926ac. 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/QMG271500019.
Cuando Tu Quieras Chocamos (feat. Gotay el Autentiko)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65d13c30c34bccb818db7505f989b4b47b8a8e1eaa086d7b2e9572acbe0ad4a3. 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/QMG271500016.
La Nueva (feat. Pusho, Benny Benni & Alexio la Bestia)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b0519e9a2d0fa6a1a9749e6893bfbccd5e1b895d92db42b63e20949e229f28b. 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/QMG271500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56cfdc95fc0dd79d1b61db872566e409c260abac7cd509b338873692ff49af46. 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/QMG271500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f0f8e9770e5bb02dbb6cf50ea9d27ca3eea8ab881cd62b5b90fb488873dfc7a. 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/QMG271500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6be89c1263b154acd488899f3fa9623e7863494b676bf48c01de70b6a64fa2a8. 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/QMG271400014.
Dulce Sustancia (Remix) [feat. Luigi 21 Plus & Jory]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8248b9d4c34c1337e5f25547ae5b1ae7956e8308a25b050fccd31084f59e8799. 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/QMG271300024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b807b12e78b501fcdd6bccd5e6bda978a6ccc5bff74dab440b2e07df28ad89. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZQAY2304423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb713df2e43907592dd6d45a020d61ca1a22bacfe73e14c7d6fc3e5c1bcbbf7d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QM6MZ2048787.
Intro (feat. Gotay El Autentiko, Darkiel, Maximus Wel, Barber V13, La Duraka, Lawrentis & Pouliryc)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee718a826651cdd78f7d8d958a13a43525317909b06a163c951c9dc9e0ae6774. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TCACI1595325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06f7a3ffde78013b4395966dc6d09b4f758e10fe7955c63fb5786a489b20ae77. 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/QMDA71854630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc2c8260574f1b67e1ad58be8d767a71cf3c7d24a70b61ab1cfc5e526fe1817. 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/QM4TW1614815.