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 0xbd1e2964f06269caec22a6cc44a5479b437d4ede9058b9f146ccfeb78c108225. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1124945f-c65e-4e23-95e0-da8f905c5241.json and https://artists.proofprofile.net/proofs/artist/1124945f-c65e-4e23-95e0-da8f905c5241.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 0x1bb19371b54cef4a857c642f4694fa0e5c610b3b0239c45592aca7211421c4f2. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/SE5Q52100351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71b7a684aad2704f5721da441c645b3ffc34ca42e9e1abe7d5e852b1055b7fa3. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/SE5Q52103648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5c75060f518b802691184f3b2f054ab696fbb11483e0f5efbb9fd9d72b24d38. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/SE5Q52200679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ad957cc5db519a68bed429db144f29cad28ee87c6cff0be27e1e72bc8e4543b. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/SE5Q52200337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf473458b2dd59d62de50b1cba2fa6fafa1b6bfbb92761929cdbd3f5d9b39ebe. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:04:51Z), 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/SE5Q52201956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08c6837971686df3d97abe762b15e9837bcea2bd96765a9aca148ecb8140c62e. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/SE5Q52203260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d1185faf40664a55479d7a2d0fd9c8da6fc3a48fabe9625fbfd83cfab795789. 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/SE5Q52202542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe08287c88f7243e1bc672ca942874c7ced8e8f22e5b2dd3bb0e92f0617534385. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/SE5Q52301526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x890c166b059751928c9c3f9aa8e99614f98219eb907daabfa476163ac866498c. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/SE5Q52302082.
Cuchifrito Beats Vol. 3 (Cumbia Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x634b567f2869387b22aee335ac998d339dda7d5fd4fd4a2f1ba21f175c5d3400. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:46:54Z), 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/SE5Q52305152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x735290c6be126619831a3cbcd2d57a124f1eba412e8a5c413dbf211ce22f0e6d. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/SE5Q52304878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x364d923c34368acd1eecdb4494bddd497aa74dc97acad9a1c2fa826bf8bf26cd. 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/SE5Q52401640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43699ed6272d4dd931c443aff116071e3c2bf4e4bf537489ea8fa39a94929fd4. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T05:03:25Z), 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/SE5Q52401517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51efbfcd6dff9bd05358d2316e0ec358caeeb5156290227271cd5c78868d960f. 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/SE5Q52401787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1841e4e8aab7fd0e830c25c1fe40cf33f86907ad8ee866bc052ac1822dc7a0d4. 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/SE5Q52500744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47ad4a23d6f4d196e194594afa7f54656bf7ce783da7a17340d5d4f2403b9111. 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/SE5Q52502204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20aed7145f43741b702c34d23047a3fea2a6832ff1b2c5b7222533112ef4e8c3. 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/SE5Q52300619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa934f492659b6003dd7460c41239bb6f794e8b20f110ab88c398a65ec5b6d421. 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/SE5Q52400985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f0d9645e3745e90fd08ad3eaa5152145c40ab6c7d228d2e5e1ff3625fd9221. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/SE5Q52300615.
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
Bang (Sped Up Version) - Instrumental Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf88b708a7fb42c89f638bdaac1c0568cc79d4844191e03f2212b4d7ed5bcb97. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/SE5Q52300620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf737a9a2c89a9115d44c55b2e737a9b8c3d278d7cab11a6df5a4d9b48cbf4a0. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/SE5Q52400937.