Acer is a genus of trees and shrubs commonly known as maples. The genus is placed in the soapberry family Sapindaceae.Stevens, P. F. (2001 onwards). Angiosperm Phylogeny Website. Version 9, June 2008
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 0x872ad25a79744ad403772f24f3bb0676c0f234b0087578a3420fc1904a99458e. 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/286a7159-eac4-45de-b1d8-7db8cee16cad.json and https://artists.proofprofile.net/proofs/artist/286a7159-eac4-45de-b1d8-7db8cee16cad.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 0xcd082b9490c5e8776ac222a392f19ee65b7ffa1ef2108c7fd7baa04e3a97ed16. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/QZFYZ2055719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b219cac0919a5804deeb23b5dccec04d342d0342f9706eee91a4bc2bb478e0f. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZHNC2147626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14d01eaf11ff81c4cca585b8c997cdb63d402b8ba7a9e922dca6cc003dc4a34d. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/QZHNC2147627.
stupid bunny on a green hill covered in blood
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b389aaf43925a50e4af2c06bcd0c7122eb5e473b5e2724dfcda96e3f0e509c6. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZHNC2147630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b6a15778c69cdc348deafd8ec54d0aa8346b0858e46d9ace0fdc9e70387f88. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZHNC2147631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d60168d50fd11613f1c6afac14165e09c3dde87d9de628ba626379b1f3b070a. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZHNC2147638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x454f87c3793236421d8b282fa0fab18df92f09db81a80cc21a76ea735b806149. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZHNC2147639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26670ec08ffc5c4433f5240a5f6c60370213ae99b329e308f071c6d07ace831f. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QZHNC2147642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8313bf933d316f83a966a297cc2e5ce1fc9d7aab16a274420bb1a7c5d8a0fa27. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZRP52179676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3757d09c50dc6d2b920bd4fe1793483c107b9a04b09c10e82bc60e957d4ba8e5. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:28:02Z), 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/QZTAS2250559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18c9fd66ed276c3a0935c1ccc2c497861423bcfd25e2bb7955bfa952f9b6dca2. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZTAS2250560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e7b3a6b1e57b8515f9105cdf4a7197f34452d8b9b70700975ee21304d4d3eb4. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:11:04Z), 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/QZTAS2250562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78a14674fa897b1f4f47f5867454ac586cdf978ec3e61fb5ccba01bd4309360d. 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/QZTAS2250563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02ea679ce065bbb4cd3a5e0bec02dce7c8a2fa22d871bcce5beabcc17a39c2e3. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/QZTAS2250564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b93bc88d9e85c2a5e5a1676117901612b785b5af435b2e2531f1b81fc6ec92. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QZTAS2250566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc04fdd7438695098b483d31e80e95fe1ec08ec9cacc74af7980a74e1049febfa. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QZTAS2250567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb222247701ed2c683cc7581b89fe4e45bb919d9881f9e965029c374643d02b67. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:56:21Z), 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/QZHNA2304440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5087f5dd43352b266287f4a544d4cb5d9e104096df2eb67f2eefe332e5a84f12. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZDA52580989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x512b7dd9ad4abfa7144f1b05b1c1b0be5916d1bf32ab3e37b0d79c8fe6032157. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZWFT2514293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d2381570f7459c69aa960b5376e54fdc9bccff4f2449ae6c2537d62a57650cd. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/QZTB72335685.
Hardcore Will Never Die, and Neither WIll You
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83448f210265b351e3e2a46d7644e0dbedf22a695cc6e40fe58c6bd01d17152d. 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/QZWDE2313296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaed94e2319a723d472f377879fe1a44ae0765fc5fe5458e30a0774a52783bc1c. 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/QZWV32495158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6594949190a8b171a6d2149c0f037fd4fcbedddb73aa6cb4d6c6d77f2157f0c8. 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/QZWV32495958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc5d7b39d831f5134e72329b1f2ec1b8dea78147cba6406869ed0e79d98d032d. 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/QZWV32496408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda97695d395218d5515f9aba8f448ef60195fbef527b622751ee795b1a0d59bb. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/QZWV32495113.
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