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 0xacebfc012e7f4af40e10aeaa3fa5ea60e3d5d085eea99d14868204ba743e0782. 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/8092acf1-4888-4e33-a404-d1820f2b8024.json and https://artists.proofprofile.net/proofs/artist/8092acf1-4888-4e33-a404-d1820f2b8024.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 0x33ae93b286f4031df553b25f27a352451c4277fbb5e8d4e4e1c8a2a0b4a18e68. 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/QM4TW2380996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12bf332dfb9bb0e24a6cb0fb47f948e3afa49b7e3c420bba7f5b78db1da61b15. 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/CLA1D2300031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12bf332dfb9bb0e24a6cb0fb47f948e3afa49b7e3c420bba7f5b78db1da61b15. 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/CLA1D2300031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b5caa1656ff691446eae459a48d52c0bf39d8e5810c87a0c3c1549bd3f1d15a. 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/QM6P42304208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb84ffdda343385fc7a467476a1f86bf3ba106bff97c7b197d8be9f7e4e43de6. 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/QM4TW2264015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe12bbb5d8767e654c5cd58acc90099fe6cf38b3c0550d127b0ab2c262cffee0. 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/QMDA62253413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeccc9fcaeb8005839bd2dadfe672d255095af10cbb993154bb9b81c95cc71c65. 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/CLA1D2200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c74bda6f21a2c7dec7d82da073590d659ca8d5309467ddb2f4a9fb8c81efea6. 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/CLA1D2400039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e8a4936415fd47d80c9b3bfdd0c3c78dcda3eb721f709c7a9bbb7f137fe06b8. 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/CLA1D2400063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c74bda6f21a2c7dec7d82da073590d659ca8d5309467ddb2f4a9fb8c81efea6. 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/CLA1D2400039.
ME GUSTA PONERLE AL POLVO - GUARACHA REMIX
ME GUSTA PONERLE AL POLVO (GUARACHA REMIX)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2994357bac5db30c53e28bb720945a223091c3f9c716f7ca2ccd4c6c2e0ff7f5. 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/QMBZ92383127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0d596c03c435aeaaeb8a0578a605182e840aab9b2aafebfaf2c9c0d4afe8e92. 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/CA5KR2324090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea762d365c8eefbbbcaa9d2638e9964be9a19b9ad7dfdafc25b1ae49ea9fa79. 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/CA5KR2317152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63dab5528612c319f3c2398eff35fc5629ad1c1867d6533aa62b33109c050e2a. 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/QMBZ92274349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd12dc4cb3215e2177a43cad757ffaf408b730ba94725403b4226c8c30b144ab7. 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/QMDA72407952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f5994bcba3d6ebd8ebae8d8feb2a1f716825e69529d83c830aaa8bd74d3a3e0. 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/QMFME2373319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f8706457ba6c7177deb0eab277de72a6a92c9cb49a54eb936f5ec930f37f83. 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/QM6P42489895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0304303d7eb3ad82dd95661c80dfb6ba9de6661e069733ba436ca69ed869df74. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:48:23Z), 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/QM6MZ2418298.
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