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 0x0b9344788d25415f36f6205bcdc090ca1a2d62ebc41320af9348755e99dfc57e. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f1ae58d7-5253-4961-879e-a7c119578452.json and https://artists.proofprofile.net/proofs/artist/f1ae58d7-5253-4961-879e-a7c119578452.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 0xdcd078d0b7f2eddf0c9f00cfb6326367120ac33012ed84f1b98c713182cf9da8. 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/QZNWX2415882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdff17aa9cc5d5721c868d0e264fae073cae037b04329bf6851daefd30bd2889d. 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/QZNWX2415886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e24548a80c7bde3b31ec4b9fd4f9b96f46d838abadeca818124d26247c459ce. 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/QZNWX2415887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8242a638641299e9886157415aa8e1a3ebe4da441b7fd90f093c83135ba28a41. 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/QZNWX2415890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe86dd8e270194aae5e63989cf79612a7f49bf2d9755300c45c2eb91d519585f0. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/QZNWX2415884.
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
budots by djacc (hello tekno, DJ baby banilla)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2adc2643ec40999ad4836458ac699db751a63e6a7281c46d15cd01851a572876. 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/QZK6F2330519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x188d2e8867c31104d7e54d3aef712b8b941a8848f2d1d140c6e5916416c4994c. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZK6F2330521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd371a061b1cf3e8df469385017541c9671118a4a3bf6f705f13a1c5866675d31. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/QZK6F2330525.
DropLeafShoujo, passing of time EP - (hearteyesL)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0439932f0dbc11c7e7eaa5cff1833e47899cdd987a3769522ae9213e2b234aa7. 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/QZTAZ2299548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ae34dd9aca391d98e79d5f8e662c8fdcfba1ca9b59862373cc2dc1296a15990. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/QZTAZ2299558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c868f830da35c4e7421e3a031a7ade1c76c5fd11e4d1f37aa1499fcf7be9885. 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/QZES92447680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c49bdda8a85aab1d5b8411e31af59bc8c4cec30d2d0bf4dbfa2903bf7934be. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/QZES92447679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f2f063e93d042db734fe9027b60e832546d221a189b49c4363d6d8d500f23c7. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QZES92447683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb5e53809729b387db631ffa975f840ba74c046bc87c380427d7d3fcea819adb. 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/QZFZ22433120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b4eb5fa4eb479e4ea5c3fe4c3df4fbf0b0f191ed7643cb68ae5673575aff6a8. 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/QZFZ22433121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x209a4c516aa1fc9b7a620f2b4346103bbd9a1695b92a39dc1ab36e6cf446e8b6. 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/QZFZ62335543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f2e0beb6332bb5812bc90a6dda6a5a028281fcfb915a8d3f80235e89d2d5cfe. Chain 2 (Bitcoin): anchored in block 957233 (2026-07-08T23:07:54Z), 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/QZHNC2305264.