thumb|upright=1.5|Trapeze artists, in lithograph by Calvert Litho. Co., 1890. A trapeze is a short horizontal bar hung by ropes, metal straps, or chains, from a ceiling support. It is an aerial appar
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 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 0x967a07a6fa6dc3f37426736b451a6d80522c58e033103d659322fe647eb50cd7. 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/39e06842-c4f7-4669-a4d3-c2afd493644a.json and https://artists.proofprofile.net/proofs/artist/39e06842-c4f7-4669-a4d3-c2afd493644a.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 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 0x8e126e6c16273088e5580e7d01350a9e63525124e48fc06d062df2e8c1e52948. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/GBA177000140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f50215525215a599517bf0136d05a61c832c13dc92569d3cdf18c7f441f56ba. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/GBBLY1902864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8dd3106bc88b2a97b1dba093d77ec9a71d3f4f694a21c96387f4329fad38b81. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/GBBLY1902865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb59deba7723e5fa370cce516bd10bcece0b528df4ae5fca699f629c7217935. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBBLY1902866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1be11bf3e96551bab2ceb4c02ff06080f8a120f461d63479ca7505e54270363. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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/GBBLY1902867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe29911b3f80db8c6cf0126a99b6743867ae5599acc59d6cfa6921173492b3056. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/GBBLY1902868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb288709bf0a6c1974bd6ad7ddce46a920dfc7594993d888929b36ace5b21e57. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/GBBLY1902870.
You Are The Music...We're Just The Band (Deluxe Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11631c6fd0dc80fb6f344bffe0a01a8a6b2e2070fd115970d60b9de1fb398659. 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/GBBLY1902883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06d4957982c755e36051d292d996996fdb9835dc9139c27fdae29a3a38ab6cf3. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/GBBLY1902884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20b21cd3100c56173868b69faf2ce647c794f81328341cba4c968d6cdeece283. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/GBBLY1902886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe03516ec9fa910027036e586ced52df7cd9fa7f5952553c4c81b79081ae07271. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GBBLY1902890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c27b16bb8801d7024ebd981fa30212cb7e5ce8be03c8355eb015a32c58df33f. 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/USWB10804700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x430da734b302d18fceb0eb5fcec3582214b0eaa5aaee197df0cee33bda452d8c. Chain 2 (Bitcoin): anchored in block 957624 (2026-07-11T23:13:54Z), 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/USWB10804701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe92da7c86598c894f4ad431a0c34ad00bdd2193f054f0a004009d1eba7379fc8. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/USWB10804702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b21aebf7118a6f971bd522e891f38bac474ab965872e2f6a95e160bf7bd7f7a. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/USWB10804703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f71d552c6d93f4eaaaea38b9c84fdfe5c522deb2449a2b06023235033de7842. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T19:50:27Z), 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/USWB10804704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea75b14a29e49732f5faa32ca378c25589325c73c237d083ca348505ef1f014a. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/USWB10804707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90883e016d184c51822283c172b4f492923339da19dc8d1a8bb243e99002fcbd. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USWB10804713.
Leavin' The Hard Times Behind: The Best Of Trapeze
Don't Stop The Music: Complete Recordings, Vol. 1, 1970-1992